Snow Angel, Inglewood Golf Course, December 14, 2019. Photo by Kathleen Johnson.
During the recent Calgary Christmas Bird Count, we saw an amazing number of animal tracks in the fresh snow on the Inglewood Golf Course. But the most extraordinary tracks were these wing impressions (sometimes called snow angels) left by some of the local Bald Eagles as they skimmed low over the snow.
Photo by Kathleen Johnson.
In two places we saw a series of over twenty of these in a row, where an eagle had taken off from the ground or a low perch and flew across the open fairway, leaving an impression with every wingstroke, usually with impressions of the feet between the wing prints as well.
Some of the prints were over five feet across, despite the wings not being fully extended. Photo by Kathleen Johnson.Bob pointing to talon impressions. Photo by Kathleen Johnson.Photo by Bob LefebvrePhoto by Matthew Wallace
In the new year there will be an eBird challenge in Calgary in which participants try to see as many species as they can within the city limits. See this post for information about the challenge. To join, send your name, ebird name, and email address to Howard Heffler at: hheffler[at]shaw.ca.
It is usually easy to tell if the spot where you are birding or have birded is inside the city limits, particularly if your location is an existing eBird HotSpot. But if you are near the city boundary and birding at a new location, it can be difficult to tell if the spot is inside or outside the city.
There are two mapping tools available to help with this aspect of the challenge. Each tool works on both a desktop and a tablet/smartphone.
Google Maps Tool
To access this on a desktop simply click on this link. This will bring up Google Maps, as below.
The YYC2020 area shows up as a lighter area bounded in blue.
To facilitate easier access in the future you can choose to
bookmark this location in your browser.
To access on a smartphone/tablet the process is similar, and
there are probably several ways to do it.
First ensure that you have the Google Maps app installed on your
smartphone.
The way I have found most convenient is to generate an email with the link embedded. You can then click on the link in the email to get the map, as below. As with the desktop version you can then zoom in and out. If you are in the field you can immediately check to see if you are in the city limits or not. If you are at home and checking to see if a location you have already birded at is inside the city limits, just compare your location from the eBird location map to this boundary map.
I have created an email subfolder YYC2020 on my phone with this (so far the only) email in it so that I can rapidly find the relevant email and click on it.
You can also set this up as a favourite in your smartphone browser. I think this is more complicated, and how to do it depends on your actual smartphone and preferred browser. There are too many options to describe each one here.
Google Earth Tool
This requires that Google Earth Pro is installed on whichever device(s) you are going to use. It also requires setting up the City boundary as one of “My Places” in Google Earth.
The City boundary is defined in a Google Earth add in file
named “Calgary City Boundary.kml”. This
is available on the Nature Calgary
YYC2020 webpage.
To access this tool on a desktop :
Download the kml file from the Nature Calgary website and save it in a convenient folder on your desktop. The file link is at the bottom of this page on Nature Calgary’s site.
Open Google Earth Pro
Use file open and navigate to the location where you saved the kml file
Open the kml file and you will see the Calgary
City boundary saved under “temporary places” in the menu on the left. You will also see a view showing the city limits
overlaid with a brown colour. The
precise view you will get depends on exactly which layers you have switched on in
the lower part of the left hand menu.
Next, to ensure you see this the next time you open Google Earth just drag the City Boundary.kml folder up in to the “My Places” folder.
That completes the set-up.
Next time you open Google Earth simply click on
the “Calgary City Boundary” link under My Places.
To set it up on a smart device the procedure is somewhat
similar.
Install Google Earth Pro on your smart device
Install the kml file on your smart device
There are a number of ways to do this
If you already have the file on your desktop
then save the file to a cloud location that is accessible to your smart
device. Typically iCloud or Onedrive.
Then download the file from the cloud location
to your smartphone .
Now open Google Earth (Pro) and open the
“Projects” drop down menu from the three bar menu at top left.
Press “open” and then “Import kml file”
Browse to where your kml file is located. The iCloud screenshot below is one example
Tap on the relevant file
Bring it in to Google Earth (by tapping)
You will now see the city boundary as a brown
overlay
If you want to check your own location then tap the three white dots at top right.
Next tap my location at the bottom, and you will see your location.
Note that unlike Google Maps Google Earth does not continuously update your location. If you move and want to check again then you have to reset your location
If you do not have access to the file on a desktop then access the file on the Nature Calgary website from your smart device and save it to your smart device. Then follow the same steps described above.
If you have any questions about the challenge contact:
A WhatsApp group has been set up to allow Calgary birders participating in the 2020 “Big Year” Birding Challenge to share instant updates on rare/uncommon birds sighted within the city limits. The big advantage of this group over email listservs will be that everyone can send out and receive updates quickly. It is essentially like sending a text message, much faster and more direct than email. Photos can be also be shared with the app.
WhatsApp groups are currently restricted to 256 members, which we hope will be more than enough to include all the birders who want to get “instant” bird news while they are out and about.
For those who do not want instant updates we will have a weekly report of rare birds on Facebook, Instagram, and Twitter. Follow the challenge on Twitter at @birdyyc2020.
Joining the group
If you don’t already have WhatsApp on your phone, you will first need to download and install it (via iTunes, Android Play or the Microsoft Store, depending on what type of smartphone you have). The app is free. Once you have the app, you will need to send a request to one of the group admins with your request to join the Birdyyc2020 RBA group.
The WhatsApp icon.
There are currently two group admins: Gavin McKinnon and Bob Lefebvre. In order to join the group please send a message to either one of them and they will add you to the group. A text message to their phone number is the easiest way to do it. Gavin 403-519-8703; Bob 403-370-0556. Include your name so that it will be visible to users when you post messages to the group.
The group is open to all birders interested in Calgary’s rare birds. All BirdYYC2020 challenge participants will receive an email with a link to join the WhatsApp group. If you received this email simply follow the link to join the group. To join the challenge, email Howard Heffler at hheffler[at]shaw.ca with “Challenge” in the subject line.
Group Guidelines
● The group is only to be used for sharing information about rare and uncommon species within the city limits of Calgary. Please remember that every message you send goes out to everyone in the group. Although general chit-chat and banter is expected please avoid having conversations in the group chat.
● If you find a bird on the list of ‘reportable’ species, send a message to the group as soon as possible. (A list of reportable species will be provided to participants.) Include as much detail as you think necessary to enable others to find the bird if they choose to go and look for it. If you do pursue (“twitch”) a reported sighting please send an update on whether you have been successful or not.
● Consider the welfare of the bird at all times. Do not send out news of sensitive or breeding birds. Please do not report the locations of owls or other species prone to disturbance on the group chat. If you are unsure of whether or not to post please contact one of the group admins before doing so.
We encourage participants in the challenge to also share their sightings on the listserv Albertabird. If you are not a member of Albertabird, see this post for information.
Don’t wait until January to start using the app! We have been using it for a while already, and we’d like to see it used next week during the Calgary Christmas Bird Count, and on other counts over the Christmas season.
Mew Gull, photographed on the Irrigation Canal in SE Calgary on October 13, 2019, by Gavin McKinnon, and shared immediately with BirdYYC2020 WhatsApp group users.
If you have any other questions or concerns, please contact Gavin McKinnon by email (gmckinnonbird[at]gmail.com) or phone (403-519-8703).
Nature Calgary is promoting a friendly “big year” birding challenge within Calgary city limits in 2020. See this post for details of the challenge.
What Are eBird Alerts?
eBird Alerts are lists of noteworthy birds reported in the past seven days in a specific county, state, province, or country. The best place to learn about eBird alerts is on the eBird Help pages about alerts and targets.
In a previous article we described how to open an eBird account with your name and email address. It will be very helpful if you set the eBird parameters on “My eBird” to alert you about local sightings that should improve your chances of adding to your year list.
Setting eBird Alerts
You can get to the Alerts page either from “Explore” and then, near the bottom, open “Alerts.” Or, from “My eBird,” open “Manage My Alerts.”
There are three Alerts:
1. ABA Rarities
This alert is for observations of rare birds in the American Birding Association Area.
2. Rare Bird Alerts
Email alerts for rare birds in a particular area.
3. Needs Alerts
Email alerts for species you have not personally recorded in a particular region or time period.
The
later two are likely the most relevant to participation in the BirdYYC2020
challenge.
You can set your region of interest to Calgary. It is important to remember that the eBird region named “Calgary” refers to an area larger that the City of Calgary.
The Calgary County on eBird.
After selecting Calgary as your region of interest, you can “View” the alerts or you can “Subscribe.” If you subscribe, eBird will send you an email – daily or hourly.
By setting your “Needs Alerts” eBird will notify you of all species reported in Calgary for the past seven days that would be new to your list of species on eBird. To be most useful to the BirdYYC2020 challenge, check the box “This year only.”
The Rare Bird Alerts will inform you of ABA Code 3 and above reports in the region, whether or not they are on your needs list.
You can also set alerts for any other other region you are interested in, for example if you plan to travel. Alerts can easily be changed at any time from “Manage My Alerts” on your “My eBird” page. It is a very useful feature of eBird and birders participating in the 2020 challenge should take advantage of it.
Nature Calgary is promoting a friendly “big year” birding challenge within Calgary city limits in 2020: BIRDYYC2020.
This article is for beginners with eBird to give them the essential information to get started and, we hope, the confidence to explore the powerful features of eBird.
What is eBird?
eBird is a publicly-accessible online database consisting of bird sightings from all around the world. The best place to learn about eBird is on their website.
The eBird Canada home page.
Since 2002 eBird has amassed over one-half billion reports from
birders around the world. It is a project of the Cornell Lab of Ornithology and
is supported entirely by grants, sponsors, and donations. It is free and available
for everyone to use.
The first step is to go to the home page and open an account with your name and email address. You will have to select a username and a password. That’s all there is to it.
Using eBird to enter your sightings
There is a vast amount of data on the eBird website that you may access, but the two things to consider initially are; (1) entering checklists, and (2) looking up data. There is a “help” button on the top menu bar on the home page. Believe me, the help pages are very good.
In the Field
I think most people keep track of their sightings while they are birding in the field using the eBird mobile app. The first step is to get the app – available for free on both the Google Play and App Stores. After you download the app and open it on your smartphone, the screen looks like this:
The eBird smartphone app home screen.
The idea is to enter your sightings while you are birding. There are
several ways to do this and you will soon find your favorite techniques after a
bit of practice. You will have to spend a bit of time at your computer looking
through the instructions on the eBird help pages.
In a nutshell; open the app, start a new list, select a location, enter your sightings at that hotspot, stop the list (when you are finished at that hotspot), review it, and submit.
I admit it takes a bit of time initially to learn. But, after some practice, you will appreciate the many ways it is helpful to your birding.
At your desk
It is also possible to submit checklists from your computer when you get back home. Open eBird and look for the “submit” button at the top of the home page. You then select the location where you were birding (if you visited several locations, you will need to submit a checklist for each), enter the time and date, type of observation, and begin to enter your sightings.
The eBird desktop interface.
Again, remember that each checklist is to be associated with one hotspot. It might be a public hotspot such as, Calgary–Inglewood Bird Sanctuary, or it might be a location you define yourself. It is not a list of all the birds you saw that day at a variety of locations.
I encourage you to look through the help pages on the eBird website.
They are very well thought out. Remember, there are many thousands (even
millions) of birders just like you. Everyone one of them at one time was a
beginner with eBird.
Looking up Data
I consider eBird to have two modes: data in and data out. “Data in” refers to entering your sightings. “Data out” refers to looking up information that has been compiled from the vast number of reports from the many millions of checklists; including your own checklists. There are many more things that can be done with this data than I can even begin to describe. Here are a few things you will initially want to do.
Check out Hotspots and Species
On the eBird home page, open the “Explore” page. From there you can find a hotspot, look at what birds have been reported over any time period, see the location on Google maps, and study the historic data in any way you could imagine. Most likely, you will want to see what birds were seen in the past few days to help you anticipate what you might find there.
Alternatively, you may want to explore by species name. In this case you enter the common name of a species and eBird displays a map of all locations where this species has been recorded. You can then zoom in to the desired geographic scale – perhaps right to a hotspot near you where that species was reported in the past week. There are a few sensitive species that do not allow you to zoom in to specific locations. In Alberta these are Gyrfalcon, Great Grey Owl, Northern Hawk-Owl and Burrowing Owl.
My eBird
Of course, you will also want to look at your own data. On the eBird home page open “My eBird”. On the main part of the My eBird page you can look at your own data. On the right-hand side are several tabs. Likely the one you will use most frequently is: “Manage My Observations”. When you open this page, you will see all your checklists. They can be sorted by date, by location, or by region, and can be edited or shared.
There are many other actions you can do on or from “My eBird” such as setting up alerts to let you know about rare bird sightings or to advise that a bird you have not yet seen that year has been recently reported – we will discuss this feature in another article. One set of parameters I want to draw your attention to is: setting your eBird preferences. We want all participants in BIRDYYC2020 to share their eBird lists and make sightings on eBird visible. The purpose is to allow all participants to chase sightings by others. Specifically: from the eBird homepage, under My eBird, select Preferences; Data privacy – elect to NOT hide your eBird data.
One other feature of eBird that will be of special interest during the BIRDYYC2020 challenge will be how to establish a “Patch”. We will develop another instructional article on just that topic. The starting point on the eBird home page is the “explore” button. Try it and see how you do.
Closing
I can remember many times my Dad telling me when I was young: “Don’t play with that, you’ll break it.” That’s not true with eBird. You won’t break it. Sign in and go exploring around the whole site. Look through the help topics. Look at the data for one of your favorite hotspots. Explore the Region, “Calgary County”. Be aware that “Calgary County” is quite a bit larger that the City of Calgary.
Nature Calgary is promoting a friendly “big year” birding challenge within Calgary city limits in 2020 (BIRDYYC2020). (See this post for an introduction to the challenge.) This guide to Albertabird is one of a number of posts we will present to help everyone who participates.
What is Albertabird?
One useful tool for those taking part in the challenge is the online discussion forum “Albertabird”. This is a place where birders can share sightings, locations, and photos, so it will be useful to participants in keeping informed during the year and giving them the best chance to see as many bird species within the city limits as possible. This article is for newcomers to Albertabird. Anyone can join Albertabird or use it as a resource – it is not just for BIRDYYC2020 participants.
The Albertabird email list was started in early 2000. Initially hosted by Yahoo Groups, a switch to the more compatible platform, Groups IO, was completed in late 2019.
This list functions within the guidelines found in the American Birding Association Code of Ethics. The Albertabird Moderators are Gerald Romanchuk, Malcolm McDonald, and Caroline Lambert.
To post messages to the list you must be a member. To join, you simply go to the site’s Home page and click on “Apply for Membership in this Group.” You will be asked to submit your email address. You should get a response to your request for membership in a day or two.
You can open the “Messages” page to see the latest posts. You can also go to “Subscription” and set the parameters in a way that suits you. You may elect to receive each message in an individual email or in other ways or to not receive emails. Once you are a member, you can post messages and photos for all to see. You can post either right on the website or by sending an email to Albertabird[at]groups.io.
Albertabird
has been a powerful and useful tool for years, allowing birders to share
stories and help others learn.
We encourage you to look frequently at Albertabird and to post stories about your adventures during the BirdYYC2020 challenge.
Albertabird
Guidelines
The complete guidelines for users of Albertabird can be found on the Albertabird website under “files”.
A
few points to remember are:
Do
not to hit the “Reply” button when responding to a message unless you
are intending to send your comments to all subscribers.
All
posts should contain your name and location by city.
Be
prepared to share directions to interesting birds, except for species at risk.
Do
not share directions on private property until you have permission from the
landowner to do so.
Do
not post detailed information on a nest location, particularly for species at
risk, to minimize disturbance to nesting birds.
The
list allows attachments such as photos or files. Files should be kept as
concise as possible in the interest of saving storage space
Photos can be attached to the message as a file or pasted into the
message. (See the guidelines on the Albertabird website for more details and
restrictions.)
Enjoy!
Any questions or suggestions about BIRDYYC2020 contact: Howard Heffler: hheffler*@*shaw.ca Andrew Hart: andrewhart*@*shaw.ca Bob Lefebvre: wbird7*@*gmail.com Gavin McKinnon: gmckinnonbird*@*gmail.com
On Saturday November 23 there will be a free public event to share the findings of the Calgary Migratory Species Response Team (CMSRT). The event runs from 12 noon to 1:30 pm, and everyone is welcome to attend!
This will take place at St. Mary’s University, 14500 Bannister Road SE, in Owerko Hall. The University is located east of Macleod Trail, just south of Fish Creek Park.
Come learn about the impact of bird and bat migration in an urban setting. The CMRST’s team of volunteers is on the front lines rescuing birds and bats that have been injured due to urbanization and compiling scientific data. Join us to learn how you can make a positive impact on the lives of migratory species living within our community. See the evidence of the CMRST’s work in monitoring birds and bats involved in window strikes in downtown Calgary, and in rescuing those that are injured.
This is a free family-friendly event. There is more information, including a map of the location, on the Eventbrite page linked to below, but there is no need to get a ticket – just arrive at noon to enjoy the programme below:
12pm – Welcome and Elder blessing.
12:15pm – Dr. Scott Lovell presents intriguing findings about bird strikes in the downtown core; Melanie Whalen speaks on found wildlife care and our findings on bats in the city.
12:45pm – Recognition of the generous contributions from our partnerships, volunteers, and stakeholders.
1:00 pm – Catered reception and specimen viewing – see the impact!
The next Birds & Birds social get-together will be held on Wednesday November 27, from 6 to 9 pm, at the usual location:
Royal Canadian Legion, Centennial Calgary Branch#285,
9202 Horton Road SW.
Wednesday November 27, 2019, 6:00-9:00 pm
Note that this is a Wednesday, not our our usual Thursday.
We are very pleased to have Chip Scialfa do a presentation at this meeting. He will speak on “Birding With Uncertainty: Psychology and Errors in Decision-Making.”
Chip Scialfa
Avid birders are keen to add to their lists and often this means identifying birds that are uncommon and easily confused with other species. What are some of the psychological errors that we make when birding under uncertainty and how can they be minimized or avoided? Chip Scialfa, an experimental psychologist and keen birder, will talk about these issues in what will likely be a “mind-bending” presentation.
Chip is a very animated and entertaining speaker, so this promises to be a fun and informative talk. Some of you may have attended a version of this presentation at Nature Calgary’s Bird Study Group a few years ago, but Chip has modified and updated the talk considerably.
As usual, everyone is welcome to attend and there is no charge. We will meet in the big ballroom at the Legion. Food and drinks are available at reasonable prices, and children are welcome if accompanied by an adult. Come early if you want to avoid the lineup at the kitchen. The presentation will begin at about 7:15 so if you can’t make it at six pm, come later.
A few local photographers will have calendars with their bird and nature photos available for sale for the Christmas season, so bring cash! These usually sell for $20 for a full-size calendar.
The Friends of Fish Creek Provincial Park (FFCPP) is now taking registrations for the popular Winter session of the birding course, which runs from January 6 to March 29, 2020.
American Dipper. Photo by Ron Chiasson.
From FFCPP:
Winter is one of the best seasons for getting outside to learn about birds and other wildlife. Brave the cooler weather and explore the world of birds in Fish Creek Provincial Park. The 12 week Winter Birding Course is perfect for anyone who wants to see and learn about birds in their natural habitat, and it provides an amazing opportunity for families to get together and experience nature here in Fish Creek.
Experienced birder David Mitchell and over 30 volunteers lead these outdoor courses. Each session lasts approximately 2.5 hours and participants can sign up for 1 or 2 outings per week.
Start times Monday – Thursday: 9:15 am. Saturdays: 9:00 am, Sundays: 9:00 am and 1:15 pm Fee: Once a week outing, Friends of Fish Creek Members: $60.00, Non-members: $100.00 Twice a week outings, Friends Members: $100.00, Non-members: $150.00
Registration Required. For more information or to register, please see this page.
For the past two decades Nature Calgary has sponsored year-long birding competitions every five years. In 2000 and 2010 the goal was to see as many species as you could within the city limits in the calendar year. In 2005 and 2015 goal was the same, but the area used was the 80-km-diameter circle centered on the Center Street Bridge.
Willet, photographed by Brian Elder in Calgary during the 2010 competition. This won first prize in the photography portion of competition.
In keeping with the pattern, we’d like to announce the Calgary 2020 Big Year Birding Challenge. This will be a year-long event, in which participants try to identify as many species as they can within the city limits between January 1, 2020, and December 31, 2020. The challenge is led by Howard Heffler, Andrew Hart, Gavin McKinnon, and myself.
As in 2015, we will exclusively be using eBird to keep track of participant’s progress. Simply name your city limits patch “BirdYYC2020” and include in your patch all the locations for which you have submitted lists that are within the city limits. (If you already have a city limits patch, just rename it.) If you are not yet using eBird you will have to set up a free account first.
There are a lot of good articles on the eBird website about how to sign up, and how to set up patches. It is really quite easy, and the eBird site is also a tremendously useful resource for birders.
We are going to keep this very simple and informal. There will be no entry fees or prizes, no categories for different experience levels, and no waivers to sign. Rather than a competition, it will be a challenge – a personal test for each participant to try to reach new goals, explore new birding locations, and learn more about the birds of Calgary.
Participants are asked to send their name, ebird name and email address to Howard Heffler at: hheffler[at]shaw.ca. This will allow the organizers to communicate with active participants. At the end of the year, we will ask participants to share their species list to allow comparison with the results of the 2000 and 2010 competitions.
In the weeks and months ahead, we will be prepared to answer questions and take suggestions. We will use this blog for ongoing communication and to write helpful instructions for participants. We also will post stories on Albertabird and on Nature Calgary’s website. We encourage all participants to share their adventures and birding tips on Albertabird.
In the 2010 competition, Michael Harrison won with 240 species! (Amazingly, he saw every species while riding his bike, competing in the “Non-motorized Transport” category.) To read about the 2010 competition, see the 2010 blog here.
Of course, 240 is a very high total – about 265 species are seen within the city limits in a typical year, but many of those are one-day wonders. In a challenge like this, you should set a reasonable goal for yourself. My goal is to see more than 180 species, which is the best total I’ve had since I started using eBird in 2012. I would love to get 200!
A challenge like this is a lot of fun and gets you really involved in the local birding community. I hope you join us!
Please see the guidelines below for more information.
Calgary 2020 Big Year Birding Challenge
Nature Calgary is promoting a friendly “big year” birding challenge within Calgary city limits in 2020.
Background
There have been two “big year” competitions in Calgary; 2000 and 2010.
(There were also “Calgary Region” competitions in 2005 and
2015.)
Scope – an eBird “Patch” challenge
Challenge yourself to find as many species of
birds as you can within the Calgary city limits in 2020!
All sightings must be within the city limits. See link below.
Calendar year 2020.
Open to all.
No sub-categories for participants.
No entry fee or prizes.
No waivers.
Nature Calgary field trips would have waivers exactly as per current practice.
Objective – a friendly competition
Share sightings.
Promote interest in birds and
birding.
Enjoy Calgary’s natural areas.
More field trips.
Compare results with 2000 and
2010.
Challenge Guidelines and Procedures
The organizers are proposing the following guidelines and procedures
to make the challenge more enjoyable and rewarding for all participants.
Participants “register” by adding an eBird patch (or re-naming their existing Calgary city-limits patch.) with the name: “BirdYYC2020” by January 1, 2020.
Participants are asked to send their name, eBird name and email address to Howard Heffler at: hheffler[at]shaw.ca. This will allow the organizers to communicate with active participants. At the end of the year, we will ask participants to share their species list to allow comparison with the results of the 2000 and 2010 competitions.
We recommend that participants re-name their patch back to their own city-limits patch after the challenge year is completed.
Participants MUST share eBird lists and make sightings on eBird visible. The purpose is to allow all participants to chase sightings by others. Specifically: on eBird, under My eBird, select Preferences; Data privacy – elect to NOT hide your eBird data.
Anybody at any time can see who is leading and his/her total number of sightings to date by looking on eBird at patch totals.
We have created “BirdYYC2020 RBA”, a WhatsApp group for sharing instant updates on unusual birds within the city limits of Calgary. To join the group, send a message to Gavin McKinnon (403) 519-8703.
Helpful Hints and Participant Expectations
There are about 200 hotspots in the Calgary “county”. All the ones within the city-limits (90) begin with the prefix “Calgary” or “Fish Creek PP”.
Over the next few weeks we will develop detailed procedures and instructions for things such as:
how to set up an eBird patch,
how to set up eBird alerts,
how to join Albertabird,
how to use WhatsApp,
how to use the mapping tools, and
other topics that might arise.
We hope to make a seasonal list of birds to help participants target specific species during each season.
Some species will be identified as “reportable” so you know what will be of special interest to everyone else.
Of course, we will do what we can to ensure participants respect private property, drive and act safely and responsibly, and follow ABA ethical guidelines: especially as it relates to protecting sensitive species.
We have maps of the city boundary in PDF format available.
