February 28th is the last day to add to our winter bird list (and yours).

Posted by Bob Lefebvre

Although we have had some snow and cold weather in the Calgary area recently, this has been a very mild winter for the most part. One might assume that more bird species than usual would be found, since more birders are spending more time outside, and the mild conditons would allow for more overwintering birds. But the factors that lead to birds wintering farther north than usual are complex, and this winter has seen slightly fewer species here than normal. We may still get a few late ones.

As of February 24th 2026, we have 109 species in the 80-km radius Calgary Circle. The average over the previous eight years was 113, with a low of 108 and a high of 120.

Part of the reason for the low number is that a few fairly regular species have not been found. Some of these are ones that usually overwinter in small numbers and are often found near the begining of the count period, in the first couple of weeks of December. This includes Yellow-rumped Warbler (seen in 5 of the previous 8 winters), Western Meadowlark (4/8), and Rusty Blackbird (7/8). We did get a Red-winged Blackbird recently, which makes it 8/9 years that we’ve had one. There are quite a few in the southernmost part of the province this winter.

One species that usually overwinters in small numbers and could still be found is the Varied Thrush. We had at least one for seven straight years from 2017 until two winters ago, missed last year, and have not had one yet this winter. There could still be some around, and they can be seen at feeders in the winter, feeding on the ground.

Some birds are almost certainly around and we usually get them, but are very hard to find. There are species that are probably present in low numbers like Steller’s Jay, which is alway found in the Bow River corridor near Canmore, and 6/8 years here, usually at the western edge of our circle. Other species may be here but in hard-to-access places, like White-tailed Ptarmigan, which we have only had once, but Bow Valley has had every year.

Boreal Owls are certainly present in the area, but are very hard to find. We have only had them in 3/8 years, and not yet this wiinter. We are also missing Northern Hawk Owl, which comes south in good numbers some years, but is very scarce this year. We have had this species every previous winter.

The only new species for the count this year is Glaucous Gull. A few were seen in the area (and in the Bow Valley!) in January. The Northern Mockingbird that was here until the first week of January was the second one on our list. The Spotted Towhee that has been in Redwood Meadows all winter is also just the second record.

There are some recent additions to this year’s list, including Black-backed Woodpecker in west Bragg Creek on February 9th. This is another hard-to-find species that is always here, and we now have it in all 9 years. A Spruce Grouse (now 9/9 years) was seen on Grand Valley Road on February 9th. This is one that is always present but only on the western edge where it can be hard to find. A Greater White-fronted Goose (6/9 years) was found at the 68 Street Wetlands on February 16th. Maybe it was hidden all winter among the thousands of Canada Geese we have. Finally, we got a Gray-crowned Rosy-Finch (7/9) near Millarville on February 16th. This species can be present in large or small numbers, or entirley absent from the area. It is usually near the western edge.

There are a few species not on our list which have had unconfirmed reports. These are ones that are unlikely to be here and could have been confused with other species. If there are no photos these are usually not accepted by eBird, nor by our list-keepers.

Finally, are there any returning migrants that we could expect in the next four days that are not already on the list? It seems unlikely. The best bet every year is California Gull. They usually arrive in the first week of March, followed closely by the Ring-billed Gulls. Currently, there are only a very small number of Californias in central Montana. There are more in the Kallispell region, along with quite a few Ring-bills, but those birds may go straight north into British Columbia. We have only had Californias arrive by the end of February once, in 2020, and it was on leap day, Febraury 29th. I recall standing in my back yard at dusk that night when a single California Gull flew over. Going farther back, Californias arrived on February 26 in 2016 (before we started the winter list). We haven’t had Ring-bills in February. The most likely place to get a gull in late February is probably the 68 Street Wetlands east of Elliston Park. Maybe you’ll see me standing there at dusk on Saturday!

To see the Winter Bird Lists for Calgary, the Bow Valley, Edmonton, and the Province, click here.

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