Rare Bird Alert Calgary: Oct 20

Oct20

Have you seen an unusual bird in Calgary? If it is on this Reportable_Birds (PDF), please report it to the Nature Calgary Rare Bird Alert line at 403 221-4519 and leave a message after the beep at the end of the recording. If you would like some help with species identification, us email us at zoxox@shaw.ca  To report injured wildlife call the Calgary Wildlife Rehabilitation Society at 403 239-2488, or the Alberta Institute for Wildlife Conservation at 403 946-2361.

This Bird Albert was recorded on Oct 20, 2011.

OCT 16

GREAT GRAY OWL – Grand Valley Road on the first east-west section of road past the 4-way stop, Ron Kube
WHITE-WINGED CROSSBILL – 4 juveniles, yard in Mount Royal, Phil Cram
TOWNSEND’S SOLITAIRE – on the summit of Sulphur Mtn in Banff NP, Thomas Glen
RUSTY BLACKBIRD – Found again at a slough east of Calgary on Rge Rd 28 just south of Glenmore Trail, RK

OCT 17

WHITE-WINGED CROSSBILL – over 60 seen by Gus Yaki and the FFCPPSoc at Votier’s Flats in Fish Creek PP
RED CROSSBILL – 4 juveniles/females, yard in Mount Royal, PC

OCT 18

RED-THROATED LOON – on Glenmore Reservoir between Yacht Club and Canoe Club, TG
WHITE-WINGED CROSSBILL – 12 in Votier’s Flats of Fish Creek PP, Gus Yaki and the FFCPPSoc
RED CROSSBILL – 3, as above
NORTHERN GOSHAWK – 2, as above
PINE GROSBEAK – 1, as above; also 2 immature/female birds seen by PC in Britannia

OCT 19

WHITE-WINGED CROSSBILL – more than 60 seen by GY and the FFCPPSoc at Votier’s Flats
PACIFIC LOON – 1 seen on Glenmore Reservoir from Heritage Park, Bill Wilson

The next scheduled update of the bird alert is on Mon Oct 24.

Rare Bird Alert Calgary: Oct 17

Oct18

Have you seen an unusual bird in Calgary? If it is on this Reportable_Birds (PDF), please report it to the Nature Calgary Rare Bird Alert line at 403 221-4519 and leave a message after the beep at the end of the recording. If you would like some help with species identification, us email us at zoxox@shaw.ca  To report injured wildlife call the Calgary Wildlife Rehabilitation Society at 403 239-2488, or the Alberta Institute for Wildlife Conservation at 403 946-2361.

This Bird Albert was recorded on Oct 17, 2011.

OCT 10

GREAT GRAY OWL – Grand Valley Road, Ian Maton and Keith Sharkey

OCT 13

SANDHILL CRANE – 2 flocks east of Carstairs-Didsbury area, 9 birds on Rge Rd 270 south of Hwy 582, 30 birds at Twp Rd 314 and Rge Rd 271 junction – seen by Corinne Griffin
SNOW GEESE – 200 seen by CG at Twp Rd 314 and Rge Rd 271 junction
TRUMPETER SWAN – 7, CG at Twp Rd 320 just west of Hwy 791

OCT 15

TRUMPETER SWAN – 4 at the north end of Chestermere Lake – Terry Korolyk and members of Nature Calgary
TUNDRA SWAN – flocks of 20 and 30 in the middle of Weed Lake – seen by TK group as above
GREATER SCAUP – on Chestermere Lake – 3 to 5 seen by TK group
AMERICAN GOLDEN PLOVER – juvenile at Weed Lake, Nature Calgary group with TK
PECTORAL SANDPIPER – 1, as above
BLACK-BELLIED PLOVER – 3-4 as above
LONG-BILLED DOWITCHER – 45 as above
RUSTY BLACKBIRD – Found by Ron Kube at a slough east of Calgary on Rge Rd 28 just south of Glenmore Trail

OCT 16

RED-THROATED LOON – on Glenmore Reservoir between the sailing club and the canoe club, reported by Bob Storms
GREATER WHITE-FRONTED GOOSE – TK, 16 birds at the south end of Clear Lake (15 kms east of Stavely)
AMERICAN GOLDEN PLOVER – TK, north end of Clear Lake
LESSER YELLOWLEGS – 5 birds as above
GREATER SCAUP – TK, 3 as above
SHARP-SHINNED HAWK – near Bow Valley Ranch in east Fish Creek PP, seen by Steve Kassai
AMERICAN TREE SPARROW – 7 as above

The next scheduled update of the bird alert is on Thu Oct 20.

95+ Years of Pigeon Roosts

Oct18

If you’ve ever driven south on Deerfoot Trail, you would have passed the Federal Grain Elevator in Bonnybrook, on the west side of the road.

This grain terminal was built around 1916, and over the years, has provided roosting and nesting sites for untold thousands of rock doves. When the grain trucks were delivering to the building on a daily basis, the spilled grain also attracted ducks and geese from the nearby Bow River. All that terrestrial bird activity naturally attracted the predators, and it was often a good place to spot a Northern Goshawk in the winter.

As of last Sunday, the rock doves have lost their perch. Apparently the high cost of operating the aging structure meant it was no longer financially advisable, so it was imploded at 8:00 am Sunday morning.

On a chilly pre-dawn morning, we were lined up on the hill to the west of the elevator with the media, police and a host of spectators. I was there because I was curious about the bird aspect of the whole thing.

The charges were set mid-way down the building, so when it went down, the rock doves on the roof went up. They circled the area, drifting in and out of the large dust cloud as it wafted towards the east.

The explosion also lifted a flock of geese off the river, and a small flock of ducks.

The whole thing was over in less than two minutes. As the sun rose through the dust, the rock doves gradually settled on a small, remaining tower, no doubt wondering what on earth had just happened to their world.

Posted by Pat Bumstead

Rescuing Wild Birds

Oct18

Last time I posted about a sick Ring-billed Gull found in Fish Creek Park (see post).  I wondered if it would have been accepted at any of the local wildlife rehabilitation centres. 

Ring-billed Gulls, which were in trouble in the early twentieth century, have been increasing in numbers and expanding their breeding range ever since they were given protection under the Migratory Bird Treaty in 1916.  They lay one to four eggs (more usually two or three), and have an unusually high hatch rate of nearly 80%.  It takes three years to reach breeding age, and a typical lifespan is ten to fifteen years.  So even though they do have a high rate of loss of young birds, the population has grown to the point where they are now the most common gull in North America, and are considered by many to be a pest that needs management.

Adult Ring-billed Gull in Valleyview Park Pond, SE Calgary, 2007

Nevertheless, it turns out that two of the local wildlife rehabilitation centres that I contacted would accept an injured or sick Ring-billed Gull.  The Alberta Institute for Wildlife Conservation (AIWC), located north of the city near Madden, accepts all bird species except House Sparrows and European Starlings, non-native birds which are considered to be invasive.  The Calgary Wildlife Rehabilitation Society (CWRS), located in northwest Calgary, will accept any wildlife but discourages people from bringing in Rock Pigeons and Richardson’s Ground Squirrels.  The AIWC will send a volunteer to pick up wildlife, but you have to bring the animal in to the CWRS.

These organizations, and others like them across the province, take sick, injured, or orphaned wildlife and rehabilitate them, if possible, for return to the wild.  They typically are volunteer-based and include veterinarians and experts in wildlife rehabilitation.

If you find a bird or other animal in distress, it is important first to be able to recognize if it is really injured or orphaned, or behaving normally, and second, to be able to handle it safely.  The above organizations have excellent information about this on their websites, which is well worth reading for any birder.  If you think you might want to use these services, keep their phone numbers handy and know what to do if you find an injured bird.

I asked the AIWC if there are times in the year when they are so busy that taking common birds like Ring-billed Gulls might put too much of a strain on their resources, but they assured me that although it does get very busy sometimes, they never refuse any animal and always manage to properly look after them all.  If you find an injured bird, it is up to you if you want to pursue rescuing it.

All of the wildlife rehabilitation organizations rely heavily on volunteers, so there are plenty of opportunities to get involved if you are interested in helping.  They also have regular open houses and give presentations to inform the public about their work.  AIWC recently spoke to the Bird Studies Group of Nature Calgary.

Blackjack, a Swainson’s Hawk used by AIWC in their educational presentations, at the Bird Studies Group meeting.

Here are links to the websites of some local wildlife rehabilitation organizations.

Alberta Institute for Wildlife Conservation

Calgary Wildlife Rehabilitation Society

Cochrane Ecological Institute

Medicine River Wildlife Centre

Alberta Wildlife Rehabilitator’s Association

Posted by Bob Lefebvre

Rare Bird Alert Calgary: Oct 13

Oct14

Have you seen an unusual bird in Calgary? If it is on this Reportable_Birds (PDF), please report it to the Nature Calgary Rare Bird Alert line at 403 221-4519 and leave a message after the beep at the end of the recording. If you would like some help with species identification, us email us at zoxox@shaw.ca  To report injured wildlife call the Calgary Wildlife Rehabilitation Society at 403 239-2488, or the Alberta Institute for Wildlife Conservation at 403 946-2361.

This Bird Albert was recorded on Oct 13, 2011.

OCT 7

PEREGRINE FALCON – off Hwy 2 near Crossiron Mills – Thomas Glen

OCT 8

LONG- BILLED DOWITCHER – 250 seen by Gordon Sick at Weed Lake

OCT 10

LESSER BLACK-BACKED GULL – second cycle year bird, seen by Ilya Povalyaev at Inglewood Bird Sanctuary
MEW GULL – 2 reported as above
AMERICAN GOLDEN PLOVER – Terry Korolyk, immature at Weed Lake
BLACK-BELLIED PLOVER – immature, as above
AMERICAN AVOCET – as above
LONG-BILLED DOWITCHER – 200, as above; also 20 at the slough on Twp Rd 250 just east of Hwy 817
SHORT-BILLED DOWITCHER – one seen by TK at the slough mentioned above
SNOW GOOSE – TK, juvenile at Cattleland Slough
GREATER WHITE-FRONTED GOOSE – 200, as above
WILSON’S WARBLER – 4, Jim Davis’s yard in Douglasglen
YELLOW WARBLER – hatch year bird seen by JD as above

OCT 11

RED-THROATED LOON – at the south end of Chain Lakes, by Joan and Malcolm Macdonald
WHITE-WINGED SCOTER – 2 at Chain Lakes, JM and MM
LESSER BLACK-BACKED GULL – seen by IP again at Inglewood Bird Sanctuary
YELLOW-RUMPED WARBLER – 8 seen by Gus Yaki and the Friends of Fish Creek PP, in east Fish Creek PP along the Bow River

The next scheduled update of the bird alert is on Mon Oct 17.

Rare Bird Alert Calgary: Oct 10

Oct12

Have you seen an unusual bird in Calgary? If it is on this Reportable_Birds (PDF), please report it to the Nature Calgary Rare Bird Alert line at 403 221-4519 and leave a message after the beep at the end of the recording. If you would like some help with species identification, us email us at zoxox@shaw.ca  To report injured wildlife call the Calgary Wildlife Rehabilitation Society at 403 239-2488, or the Alberta Institute for Wildlife Conservation at 403 946-2361.

This Bird Alert was recorded on Monday Oct 10 at 10:15 am.

Bird Sightings:

Oct 5:
-COMMON NIGHTHAWK flying over the yard of Matthew Sim, Willow Pk. Calgary.

Oct 8:
-CLARKE’S GREBE (1), 1200 SNOW GEESE, including 2 BLUE varients, 12 SURF SCOTERS, at Eagle Lake on a CFNS field trip, Rob Worona etc.
-800 SNOW GEESE at Third Lake, south of Hwy 552, SE of Calgary, Terry Korolyk.
-GREATER SCAUP (3) on a pond on Leighton Center Rd south of Calgary, TK.
-150-200 SNOW GEESE, RUSTY BLACK-BIRDS (3) at the Calgary Zoo Ranch, Dunbow Rd,south of Calgary, CFNS field trip, Gus Yaki etc.
-SURF SCOTER (1) on Glenmore Reservoir, Bill Wilson.
-SWAINSON’S THRUSH (4), HERMIT THRUSH, TOWNSEND’S SOLITAIRE, YELLOW-RUMPED WARBLERS (13) at Inglewood B.S., BW.
WHITE-THROATED SPARROWS (2), HERMIT THRUSH, NORTHERN SHRIKE, at S Glenmore Pk, GY and FFCPP.
MOUNTAIN BLUEBIRDS (10) on the ridge behind Spruce Meadows, TK.
-GRAY CATBIRD, PACIFIC WINTER WREN, RUBY-CROWNED KINGLETS (4), VARIED THRUSH, YELLOW-RUMPED WARBLERS (8), WHITE-CROWNED SPARROWS (2), DARK-EYED JUNCOS, SLATE COLORED (24), DARK-EYED JUNCO, PINK- SIDED (1), LAPLAND LONGSPUR at the Mt. Lorette Raptor watch, Kannaskis, Jim Davis etc.

A record number of migrating raptors (583) and record GOLDEN EAGLES (556) were counted at Lorette.

The next scheduled update of the Bird Alert is on Thursday Oct 13.

Movie Monday: Goldfinch on Sunflower

Oct10

I’ve been getting a few American Goldfinches coming through the yard in the last few weeks, and although they will feed on niger seed in the tube feeder, they really seem to like eating sunflower seeds right off the plant.  Here are a couple of pictures, plus a video that shows one ripping the outer leaves off the sunflower to better get at the seeds.  They really have to work to get a meal!

Posted by Bob Lefebvre

Finding a Sick Bird

Oct7

Last week I posted a picture of a bird that was sitting on a dirt path near the Bow River in Fish Creek Park (see post).  The bird didn’t move even as we approached to within a few feet.

It was a juvenile Ring-billed Gull, and clearly there was something wrong with it.  It was either sick or injured.  Gus Yaki, who was leading the outing, picked the gull up to examine it.

The gull hardly reacted.  Needless to say, you would not be able to pick up a healthy bird in this way.  Gus said that there was no obvious injury, but the bird was so thin that he could feel the bones in its breast, where the large flight muscles should have been.  It would not be able to fly.  Clearly it was unable to feed, had been starving for quite a while, and was near death.

Gus took the opportunity to explain the cruel facts of breeding bird biology: for a typical species, only half of all eggs laid will hatch; of the nestlings that do hatch, only half survive the first month; of the remainder, only half will live to one year of age.  On average, a stable population requires that a breeding pair of adults must manage to raise two offspring to breeding age over their entire lifetime, so that the offspring replace the parents.  If the number surviving to breed was usually higher, the population would explode, and if lower, it would crash.  This means that the majority of eggs and young birds fall victim to predators, disease, or other hazards.

Gus returned the bird to the sunny spot on the path where we found it, and we left it to its fate.

No one suggested we try to save the bird, but later I wondered if any of the local wildlife rescue organizations would have taken in a common bird like a Ring-billed Gull, especially one in such poor shape.  I’ll address that in my next post.

Posted by Bob Lefebvre