Might earn me a few strange looks in the gym, but beats the hell out of being responsible for someone losing their grandma. #WearAMaskYEG pic.twitter.com/sFgrU1KIKc Retweeted by Fiera Biological

Tracked down the singing Blackpoll Warbler, but sadly, he wasn’t the bird that we deployed a #geolocator on last year! Not banded. Still took a moment to enjoy him singing (and the several other fantastic boreal breeders that are around!) #OperationBlackpoll pic.twitter.com/AkEKRlRII9 Retweeted by Fiera Biological

Wildlife Track & Sign: Rock Pigeon

#FindOutFriday, #Fieratracks

Rock Pigeon (Columba livia) in snow, Old Strathcona, Edmonton, Alberta Canada.

The footprint above (posted to social media on May 12, 2020) is the footprint of a Rock Pigeon in snow, in Old Strathcona, Edmonton Alberta, on April 2nd.

Pigeon footprints are similar to game bird (like grouse and quail) tracks in general size, and in structure except for the length of the backwards toe (called a halux). Pigeons are perching birds, and as such, have a well developed, longer, halux to help them grip branches. The halux of a rock pigeon is roughly 1/2 to 2/3 the length of its lead toe, and it will register in most tracks. Birds that spend a lot of time on the ground like grouse and quail have a reduced halux less than 1/4 the length of the lead toe, and it may not register in the majority of tracks; when it does register, it may only be the tip of the claw that does.

The left footprint of a rock pigeon, with a prominently registering halux nearly 2/3 the length of the lead toe.

The length and width of bird tracks is helpful for identification. Typical measurements of rock pigeon tracks are 6 cm long (include the halux & claws), and 4.5 cm wide.

Pigeons and grouse tend to leave an alternating (walking or trotting) track pattern. Other birds often hop, leaving a 2 x 2 track pattern.

Alternating track pattern of a Rock Pigeon walking in snow

Watch for bird tracks in snow, sand, and around puddles after a rain. Other birds that frequently leave tracks include ravens, magpies and other corvids, waterfowl, shorebirds, and robins.

Joseph Litke

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