Haines Ferry Terminal, Haines, Alaska I had just pulled the van into the ferry queue and stepped outside when they arrived: from the tree-tops of the nearby Pacific Northwest temperate rain forest, two Northwestern Crows (Corvus caurinus) glided and landed on the asphalt beside me. Hopping to a stop and quickly re-arranging their wings, they […]
Category: Birds
Fragmented & Young Forest preferred by Migrating Songbirds
photo credit: Jim Frazier Research published in Vol. 126, Iss. 3, pg. 579 of The Auk has some interesting implications for habitat conservation for migrating bird species here in eastern North America. In short, during Spring and Fall migration, migrants showed no preference for stopover locations based on distance from a continuous, connected (river corridor) […]
Female Blue Tits use home-made potpourri in nests to to attract males and have healthier chicks
Blue Tit used under a creative commons lisence by Marko_K. Thanks Marko! Blue Tits (Cyanistes caeruleus) nesting on the Medeteranian island of Corsica have been known to incorporate fresh sprigs of aromatic plants, like French Lavender (Lavandula stoechas) into their nest cups. New research ((Aromatic plants in nests of blue tits: positive effects on nestlings […]
Double-crested Cormorants self medicate by swallowing stones
Thanks to Flickr member mikebaird for sharing the DCC photo with a creative commons license. A just-published paper suggests that Double-crested Cormorants (Phalacrocorax auritus) in the Great Lakes may swallow stones to reduce the number of parasitic nematodes–and in so doing, are self-medicating. Many birds ingest stones to help with the digestion of physically hard […]
Spring feels around the corner: things are moulting away…
The past two days in Toronto have been warmer than normal, leading to a large snow melt and the promise of spring (and I know it’s a tease, but it’s a nice break from what has felt like an especially cold winter). With spring comes the return of migratory birds, so this research seems relevant. […]
Knowing me, knowing you
If you’ve ever spent time watching House Sparrows (Passer domesticus), you might have noticed just how, well, squabbly they can be. Just today, I was out walking the dog, and a group of three came screaming (in flight and in sound) out from a pruned cedar shrub, flew across the sidewalk and screamed back into […]
First Impressions of the First Edition of Peterson Field Guide to Birds of North America
I went to the book launch of the Peterson Field Guide to Birds of North America yesterday (pictured on the left) and I was struck by a couple of design decisions that I think are a bit peculiar. While my caveat emptor is that I spent about 5 minutes leafing through it, two one deficits […]
Birds migrate at night in loose flocks
Birds migrate at night. Bird tend to flock together. These two disseparate facts have been recently weaved together to suggest that birds migrate at night in flocks. What I find interesting here is the suggestion that these flock are “loose”–not the tight configurations visible in the preceding video of starlings flying in a flock–birds may […]
Prairie Chickens and bird-watching
I keep an eye out for newspaper articles published on birding as I find they provide an interesting insight into the larger cultural perception of the activity. While I’m not doing a discourse analysis of this stuff, a recent article published in the New York Times (Prairie Birds Flirt, and a Town Livens Up) hits […]
Acadian flycatchers prefer the country to the city to nest
Urban birds that nest in wooded areas don’t do as well (reproductively-speaking) as their non-urban counterparts. Conventional wisdom suggested that this was because of the presence of more egg-eating predators (eating bird eggs, obviously) in urban settings. New research suggests, however, that it might have more to do with fitter (larger, older) birds preferring (and […]