A Big Black Bird

By Cathy Warwick.

Most people know that a flock of crows is called a “Murder of Crows” – it’s probably the most popular collective noun for birds. Did you know a flock of Ravens is called an “Unkindness of Ravens”? Still not very cheery, but better than murder. Perhaps some songbirds got together and made these up, they are very apt for their experience of Crows and Ravens. These big black birds love eating eggs from nests.

Common Ravens mate for life and are often seen in pairs. Here, the one on the left is grooming the head feathers of its mate on the right. Photographed in Banff National Park in October 2019 by Bob Lefebvre.

If you have ever seen a Raven up close you may agree with me when I say they are the more impressive of the two birds. If you want to get a close look at one, take out a sandwich in a ski hill parking lot, the Ravens will come flying in! I always remark on how big they are up close, every time. Their black feathers are so impeccably black they almost bend the light around them. Then they have impressive fluffy neck feathers and a massive black beak. Their intelligent eyes pierce into yours and for a second you may consider throwing the sandwich at them while you make your getaway. I once saw a Raven take a grocery bag of food right out of the back of a truck. As it was flying away I saw there was a box of cereal in its bag, unsurprisingly it had chosen wisely. Ravens are well known for being one of the more intelligent birds.

A Crow is an interesting bird also, smaller than a Raven but also intelligent. They have smaller beaks and smoother feathers. They also tend to flock together more than Ravens. If you have been to Burnaby, BC, which is a known evening roost for Crows, you will see huge flocks, all cawing relentlessly. They are so loud you need to raise your own voice to be heard. I’m not sure what the point of all the cawing is, the first caw sounds exactly like the 1000th, it’s some kind of Crow conversation. Crows have very sophisticated social relationships, which is a big reason for their success as a species.

An American Crow. Up close, the neck feathers say Crow.
Photo by Diane Stinson

A big black bird is flying in the air above your neighbourhood, which is it ? A Crow or a Raven? Here is a handy guide to help out:

Wing movement: a Raven glides and a Crow flaps
Tail shape: a Raven has a large wedge shaped tail, a Crow has a flat fan
Number of them: a Raven is alone or in a pair, Crows tend to flock together
Vocalization: Crows caw and Ravens croak, gurgle, squawk, rattle
Size: Ravens are bigger, which isn’t very helpful when there is a faraway bird against a blue sky!

The birds didn’t seem to get this memo however, and you may see a large bird, solo, flapping its heart out. If you see the bird do a barrel roll or somersault then it is a Raven, they are the more acrobatic fliers. It looks like a lot of fun and they should do it more often, then we would know what they were and wouldn’t be forced to call it a ‘Craven’.

The Winter Bird Lists

Dec2

Keeping track of bird species in the winter months, from December 1 to February 28.

Posted by Bob Lefebvre, 2 December 2024.

Once again I will be assisting Caroline Lambert with tracking all bird species recorded in the Calgary Count Circle in the winter months. I have been doing this for Calgary for a few years, and Caroline tracks the Bow Valley list. There is also an Edmonton List, and a Provincial one that has been going for many years.

The Calgary list got off to a great start, with the highest December 1 species count yet – 65! Many birders challenge themselves to keep a winter list and I think quite a few people went out on Sunday to get a good start to their winter birding. All 65 species were ones we get every winter, although in some years it takes quite a while to find some of these! We are more than halfway to our usual species total in one day, but it gets much harder to add species from here.

The second bird I saw when I looked out my front window on December 1st – Eurasian Collared-Dove. I only had my phone handy so the picture is very poor. Photo by Bob Lefebvre.

Click here for the complete Calgary list. You can tell at a glance which species are usually found but have not yet been seen this winter.

I will quote below from Caroline’s post about the winter lists on the Albertabird discussion site:

The winter birding season starts Sunday, Dec 1. As in previous years, various lists of winter birds seen in certain areas in Alberta will be maintained from Dec 1 to end of February. Alberta has some really good winter birds – there are just not many of them! And each year there are surprises. Links to all of the lists, with area maps, can be found at albertawinterbirds.org.

Calgary: this will be compiled again by Bob Lefebvre. The count area is the 80km radius count circle centred on Calgary, the same one used for the May species count. It is preferred that sightings during this count period and in the count area be reported to the Albertabird site (keeping in mind that certain sensitive species should not be openly reported), but we will also include species reported to eBird and elsewhere, if we can find them.

Bow Valley: this area includes both the Bow River and Kananaskis River watersheds, as far east as the Stoney Nakoda casino and Seebe Dam. Most sightings for this area are taken from the Bow Valley Birding Facebook group, but we will record sightings reported on Albertabird, eBird, Christmas Bird Counts, rumours on the street, etc. The Bow Valley has the lowest species count of any area, so we’ll accept any reputable report!

Provincial list: Andy Ross is again taking care of the Alberta-wide list. The list has been cleaned up, simplified for easier reading, and sorted to the most recent taxonomic order (following the Clement’s/eBird taxonomy). Andy will collect sightings from the usual sources (eBird, Albertabird, the other winter lists, the Alberta Birds Facebook group, etc.).

The Edmonton list as shown on the albertawinterbirds.org site is not the official one; I simply copy their list from the Edmonton Nature Club’s groups.io discussion group. The links are there mostly to have one jumping off spot to find all the winter list info should anyone be interested.

Good birding,
Caroline Lambert
Canmore

Moulting Is Not Revolting

Oct27

By Cathy Warwick

No! Of course moulting is not revolting, it is a natural part in the seasonal cycle of being a duck. No need to be embarrassed and hide away. Wait a second, maybe there is a need, since they can’t fly anymore to get away from predators!

Did you know many ducks moult once a year, in late summer or early fall? This means they shed most of their primary feathers all at once to grow new ones. The process can take about 20-30 days and during that period they lay low since they become flightless. If you have ever seen a pile of feathers and thought a coyote had lunch, it may not be so. The duck feathers can come off quickly and dramatically.

Not only do they become flightless, they become difficult to identify. Their beautiful and colourful plumage becomes a beige-gray bore before moulting begins. Typically this is in the summer months. This outfit is called their ‘eclipse plumage’ and it isn’t a favourite of birders. The term eclipse refers to the boring plumage darkening their usual colours. If you do an internet search for any type of waterfowl the pictures will show them in their breeding plumage, striking and unmistakable. Meanwhile you are peering through the binoculars at a beige lump wondering why birding is so difficult. We’ve all been there. At that point you can start looking for eye rings and tail shapes, which gets challenging. Or you also have the option of saying ‘oh a duck’ and watching them paddle around a bit.

Mallard
Moulting — A photo by Diane Stinson showing a Mallard that is moulting. Mallards are easy to identify at this stage of moulting.

I was surprised to learn that the Blue Jay moults all its head feathers at once. I have never seen that out in the wild and I suspect it’s because they hide away during this phase. It is such a radical difference from their usual spiky crown, They look like a tiny vulture with bugged out eyes. It only lasts for a week but you get the feeling if any bird were vain, it would be the Blue Jay. It’s amazing how much shape and bulk the feathers give birds, look at the difference between the two pictures of the Blue Jay, it’s hard to believe it’s even the same bird.

Blue Jay
Moulting — Blue Jay: Before on left (moulting) and After (beautiful crown feathers are grown in) Photos: Diane Stinson.

The larger birds and waterfowl are more inconvenienced by their moult season than smaller birds. Their feathers take longer to grow in. They often moult right before migration to have a nice strong set of new feathers to take them south. I imagine they are in the air now with their new outfits, ready to party in Mexico.

A Fiesty Hummingbird

Sep22

By Cathy Warwick

The Rufous Hummingbird is one of several hummingbirds that visit Calgary, and certainly the most feisty. They are very territorial and are known to chase away other hummingbirds from feeders, and have also been seen chasing squirrels and chipmunks. Although the idea that such a cute, eight centimeter bird can be frightening is comical, their shocking speed and poky looking beak would have me running for cover!

This summer I had the good luck to watch a Rufous Hummingbird for a solid ten minutes. I watched it stretch its tail feathers and stick its tongue out while it was perched on a branch. Prior to that I had been chasing after it as it flitted around, finally I just decided to sit down and see if it would show itself, a wise decision as they can go about 45 km/hr. I managed to look at it while it took a break from its endless battle with another Rufous Hummingbird. I saw that it had some green on it, as well as the rufous red, it was a female or immature male. The fully grown male is a nice coppery colour all over with a shimmery chin. Hummingbirds are hard to identify, firstly they are so fast you are lucky to see any markings and secondly they often have a range of plumage that is shared with other hummers. I used the Merlin app to be sure.

These tough little birds travel up to 3000 miles during migration. All the way from Southern Mexico to Alaska, so far for a tiny bird, maybe it can just soar on the winds. It doesn’t seem to be the type to let the wind do all the work though, the one I saw was constantly beating its wings while flying. According to All About Birds they fly up through California, then Washington and BC. After that they go east and fly down the Rockies, completing a clockwise circle. So for Calgary they will come through on their way south especially during August.

Rufous Humminbird — A female or immature male Rufous (Photo from Wikimedia Commons/Tom Koerner).

To attract a Rufous Hummingbird to your yard consider planting Honeysuckle, like my sister-in-law who saw them frequently this summer. They will take a while to find it but once they do they will come back yearly. The Atlas of Breeding Birds of British Columbia mentions that they will band Rufous and note the same bird at the same feeder on the same day, year after year! Our Honeysuckle died over the winter and we had a Hummingbird on our deck looking in the back window, as if it wanted to complain to the manager.

A Hummingbird feeder is also an option. There are a lot of resources on the internet that explain how to set one up and what to use as a solution. I’ll just mention that you need to change the solution at regular intervals to provide optimum fuel for them. A Hummingbird is a finely tuned organism whose heart beats 1,260 times per minute, vs. a human’s 80ish beats. Perhaps consider putting out multiple small feeders so the Rufous lets other hummingbirds also feed.

I hope you had a chance to see this small bird with an outsize personality this summer!

Rufous Hummingbirds can been seen on their breeding grounds in Calgary in the Weaselhead Nature Area, Griffits Wood Park, and other parts of the west end of the city. They arrive here on about May 10 and can be seen until September.

Osprey in the City

Jun1

By Cathy Warwick

Our sports fans are back in town. There is a pair of Osprey in Calgary’s southwest that have a nest overlooking an athletic centre and parking lot. The hustle and bustle of sports surrounds them and they appear to be used to it. I went and checked them out on a spring morning and watched one eat some fish while perched on top of a pole. As I watched the big bird with my binoculars surveying her territory, she was probably counting the breakfast crumbs on my sweater, her eyesight is that good.

The Osprey is also called a fish hawk because of its strict diet of fish. The pair of Osprey I visited fly over to Sandy Beach and patrol the river. For every hunting trip an Osprey makes it is estimated that they are successful 70% of the time. According to Cornell, the Osprey spends an average of only twelve minutes hunting per trip! Human anglers should take note of their tactics.

They spot a fish and then dive in with their sharp talons, which have a ‘opposable thumb’ type of claw at the back. Their talons also have scales going in a direction that snags the fish onto them. This feature, coupled with their strong grip, means they can be dragged under the water by a larger fish, if they get too greedy. They have also been known to dive under the water to get a fish, then to get out they ‘swim’ with their wings. These skills, coupled with their amazing vision, make them fishing machines. It’s enough to make the average angler throw their little pole and string in the bushes and march off in disgust.

Ospreys are often used to illustrate the effects DDT and PCBs had on our ecosystems, since they are the pinnacle of their food chain. Being at the top, they end up absorbing all the bad stuff in our waterways and DDT causes their eggs to have thin shells. This had catastrophic effects back in the 70’s – Ospreys were actually endangered in some areas. It’s heartening to see how they have rebounded and now have a status of ‘Least Concern’. Ospreys are all over the world, on every continent except Antarctica, and who would want to live there and hang out with a bunch of silly penguins.

During nest building the male Osprey usually gathers the materials and the female arranges it to make a nest. Last year the male had brought his mate a pair of black athletic shorts and they were acting more as a flag, hanging from the bottom. Perhaps from their favourite team? This year it looks like they are making use of a rope and an unidentified piece of cloth. I couldn’t really tell, with all the sticks and extras making up its nest, but it looked like there was no actual nesting platform for this pair. It brings up the question of why the Osprey don’t like the very sturdy nest platforms in Weaslehead. I have never seen an Osprey nest on those ones in all the years they have been there. Perhaps it is about the fishing opportunities down there? Maybe we need to organize some sporting events for them to watch?

Below are some photos of Osprey from another well-known nesting site in the city – the art sculpture on St. Patrick’s Island by the zoo downtown. The photos were taken by Onkar Kadim in summer 2023.

The Birds Of Alberta Podcast

May15

Chris Fisher’s new podcast is entertaining and informative.

Posted by Bob Lefebvre

I listen to a lot of podcasts, and recently I stumbled upon a new one from the Alberta naturalist Chris Fisher. Chris is probably best-known as the co-author (with John Acorn) of the excellent Birds Of Alberta field guide. The new podcast, also called Birds of Alberta, began on March 28, and there have been sixteen episodes so far. Each one focuses on a single wildlife species that can be found in Alberta. This is usually a bird, but there was also a really good episode about Wood Frogs.

Each episode is fairly short, ranging from eleven minutes to twenty-two minutes. As the description above says, they are about “the special experiences that the birds have while in this province to the special experiences that Albertans have with their birds”. It is not an interview format, but just Chris sharing his wide knowledge of Alberta wildlife.

I really enjoyed all the episodes so far, and I’m looking forward to more.

Check out the Birds of Alberta podcast – it is a welcome addition to Alberta’s wildlife media.

Buy Bob a Coffee.

Great Horned Owlets

May12

Happy Mother’s Day from Birds Calgary!

Posted by Bob Lefebvre

A pair of Great Horned Owls have nested on Ramona Casault’s acreage west of Calgary for several years. Ramona calls the adults Winnie and Waldo. There are three chicks this year, the last of which hatched just last week.

According to Ramona, both parent owls have taken turns brooding the chicks, and now sometimes will both be outside the nest tree and leave the chicks for a while.

Cuteness overload! Happy Mother’s Day!

Video by Ramona Casualt.

Bob needs birdseed!

Or coffee. Thanks for your support!!

Calgary May Species Count

May4

Volunteers needed for May 25-26, 2024

Posted by Bob Lefebvre

The May Species Count covers a huge area in the Calgary region. Volunteers go out to their designated routes on either the Saturday or Sunday (or both) and record all the bird species they see, and the numbers of each. There will likely be several routes available in the city and in rural areas. You should have a choice of a small or large city area, or a large rural territory or a part of one.

The birds above were seen on the 2023 May Species Count in the Longview Area, May 28, 2023. Photos by Bob Lefebvre.

Results are submitted by eBird and you are encouraged to get some photographs too. If you are inexperienced and not confident to go out on your own, you may be placed with an existing group.

The routes available will be known soon and I will post updated information. If you are not already slated to take part and are interested to join us, or for more information, email the organizer Andrew Hart at andrewhartch[at]icloud.com. Andrew is out of the country right now so if you just want more information about the count, email me at birdscalgary[at]gmail.com.

American Coot — Ruddy Duck “blowing bubbles”

The photos above were taken on the May Species Count in 2021 on the Bridlewood Pond in Calgary. Photos by Bob Lefebvre.

City Nature Challenge Events

Apr23

Register now for CNC events this weekend.

The City Nature Challenge is unique in that anyone can participate anywhere in the area from April 26-29. But if you want to take part with an organized group there are many events being offered.

To contribute to the CNC you have to post your observations on the iNaturalist app or website. If you would like to learn how to use iNaturalist, or if you need a refresher or have any questions about the CNC, organizer Matt Wallace is offering a tutorial tonight, Tuesday April 23, at 7 pm. This will be done over Zoom. Here is the link to the meeting.

CNC Map — The CNC area includes Calgary, Cochrane, Airdrie, Chestermere, Okotoks, Foothills County, and Rocky View County. Any iNaturalist obserations made in this area from April 26-29 will contribute to this project.

Matt has organized a number of events throughout the weekend. These include all-day blitzes, birding walks, and more specialized events such as pond study and a pollinator walk. Click the link below to see all the events!

Register for CNC events on this page!

For Nature Calgary members, there are three events on Sunday April 28 which are not full. These include a Birding Blitz on St. Patrick Island near the Zoo, a Bryophyte Blitz in the Weaselhead, and a Plant Walk in Glenbow Ranch Provincial Park. See this page to register.

More information from Matt Wallace:

April 26-29 take photos of wild plants and animals in your yards, neighborhoods, and favorite parks. Then upload your observations to the iNaturalist app or to iNaturalist.ca before Midnight May 5. This is the sixth year I have organized the Calgary CNC and it has grown immensely. There are over 700 cities involved worldwide and we are competing with them to see how many observations we can make, the number of species we can document, and the number of people we can get to participate. The two metrics I am most concerned with for our area are the number of observations and the participants.

My personal goal for CNC is that we can make a combined 10,000 observations or more during the four days. I also hope that we can make 250K observations by 2025 (We are currently at 169,000 observations just in Calgary). If each of us were to make even 10 observations over the weekend, we could make the CNC target and could be the top-performing Canadian city (49 participating Canadian cities this year).

The area which you can participate in during CNC includes: Calgary, Cochrane, Airdrie, Chestermere, Okotoks, Foothills County, and Rocky View County. Participate in groups, at events or even go exploring on your own. Heck, make a “big day” out of the four days if you’re up for the challenge. I have helped to organize around 15 events across the region all happening Friday-Monday which can all be found on the website below.

Types of subjects we love to see shared on iNaturalist include Birds, Plants, Butterflies, Insects, Fungi, Lichens, Mosses, Mammals (pretty much everything and anything but NO people or pets).

See my previous 2024 CNC post here.

Have a fun weekend and help this project reach its goals!

City Nature Challenge 2024

Apr7

Thursday April 26 through Monday April 29

Posted by Bob Lefebvre

The sixth annual Calgary City Nature Challenge is coming up soon. This four-day bioblitz is an effort to try to record as much of the Calgary and area biodiversity as possible. Cities around the world will be taking part in this effort, and competing to see who makes the most observations and records the most species. As usual, Calgary will be competing to try to increase our own participation and species numbers here.

From CNC Organizer Matthew Wallace:

The sixth annual Calgary City Nature Challenge takes place April 26-29! Over 650 cities worldwide will compete and collaborate to showcase their urban biodiversity! Participate by taking photos of wild plants and animals in your yards, neighborhoods, and favorite parks over the four days. Then, upload your observations to the iNaturalist app or iNaturalist.ca!

There are several public events happening across the city which include pollinator walks, guided birding tours, and park bioblitzes. You can also just head out to explore on your own or with a group of friends.

Participate anywhere within the Calgary Metropolitan Region which includes Calgary, Airdrie, Chestermere, Okotoks, Rocky View County, and Foothills County.

The deadline to upload your observations to iNaturalist is midnight May 5.

Cities will compete to see which can make the most observations, document the most species, and engage the most people. Calgary aims to be the top-performing Canadian city with a goal of over 10,000 observations posted. Make as many observations as you can April 26-29 so get outside and help to put Calgary’s biodiversity on the map!

Check out all of the CNC resources on the following pages:

The City Nature Challenge webpage. Watch the events tab as more field trips are added.

CNC 2024 Facebook Page

The Project Page on the iNaturalist website.

As birders, we can participate by taking as many photos of birds as we can over the four days. Any identifiable photo is good so don’t worry too much about the quality of your pictures. We also need to document everything, so don’t hesitate to photograph House Sparrows, Black-billed Magpies, and other common species. Then you have until midnight on May 5 to upload your photos to iNaturalist.

An adult Bald Eagle I photographed near the Inglewood Golf Course on the 2023 CNC. Photo by Bob Lefebvre.

While you’re out there, you can also get photos of non-bird biodiversity with your camera. Maybe you won’t know what species you have, but iNaturalist has an artificial intelligence that can help with the ID, and even if you have no idea, other iNaturalist users will help to identify everything.

Canadian Beaver — Green-striped Grasshopper

These were a few of the other species I saw on the 2023 CNC. I didn’t know some of the species identifications until I entered them into iNaturalist. (Photos by Bob Lefebvre.)

Since I have my phone with me when I’m birding, I can use it to get photos of other species which are difficult to get with a big camera (photos by Bob Lefebvre):

Brickwork Woodlouse — Elegant Sunburst Lichen

I have found it to be a great experience to use iNaturalist to learn more about our overall biodiversity. Like most birders, I am interested in all of nature, not just birds.

Watch this short video about the 2024 Calgary City Nature Challenge:

Matthew has set a goal of having 10,000 observations made over the four days this year. In 2023 we had 9,301, so we are getting closer! We also hope to better our total of 762 species recorded last year.

So check out the project links above and plan to participate in an event, or just head out on your own!

Birds Calgary

A birding blog for Calgary, Alberta and area

Archives

A Big Black Bird

By Cathy Warwick.

The Winter Bird Lists

Keeping track of bird species in the winter months, from December 1 to February 28.

Moulting Is Not Revolting

By Cathy Warwick

A Fiesty Hummingbird

By Cathy Warwick

Osprey in the City

The Birds Of Alberta Podcast

Chris Fisher’s new podcast is entertaining and informative.

Great Horned Owlets

Happy Mother’s Day from Birds Calgary!

Calgary May Species Count

Volunteers needed for May 25-26, 2024

City Nature Challenge Events

Register now for CNC events this weekend.

Register for CNC events on this page!

City Nature Challenge 2024

Thursday April 26 through Monday April 29

By Cathy Warwick.

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Keeping track of bird species in the winter months, from December 1 to February 28.

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By Cathy Warwick

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By Cathy Warwick

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Chris Fisher’s new podcast is entertaining and informative.

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Happy Mother’s Day from Birds Calgary!

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Volunteers needed for May 25-26, 2024

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Register now for CNC events this weekend.

Register for CNC events on this page!

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Thursday April 26 through Monday April 29

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