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It's 18°F, clear and sunny, with a gentle breeze, and ½ foot of new snow on the ground this November morning in Alaska — ideal conditions for trying to catch a hummingbird.
An immature male Anna's hummingbird has been keeping a watchful eye from a sheltered branch just off the corner of my banding host's porch. I move the heated hummingbird feeder, which the bird has been visiting, into my trap, set the trap door, and step away. Four minutes later, the small bird, sporting a few patches of fuchsia feathers on his head and neck, navigates through the opening to drink from the feeder. I quickly drop the trap door, catching my third Anna's hummingbird of 2023 in Cordova. This brings my total to eleven birds caught since 2015.
Anna’s hummingbirds have been found in increasing numbers along the Pacific NW coast since the beginning of the century. The species has rapidly expanded its range from the 1940s when it wouldn’t have been found north of Baja, California. Since the beginning of the 21st century, Anna’s are commonly found in British Columbia and southeastern Alaska, and they are still pushing northward.
The majority of the Annas I've caught in Alaska are immature birds, but none of them were young enough to be certain they were locally born. And while Cordova has documented Anna’s on several Christmas bird counts, not enough birds seem to be surviving through the winter to establish a breeding population here — yet.
If this hummingbird wasn’t born here, where did it come from? The common belief is that Anna’s are breeding in the Pacific Northwest in early spring and the immature birds are following the summer bloom 1000 kilometers north into southcentral Alaska.
Once in Alaska, Anna's may not migrate in the traditional sense of leaving for the winter and returning when the snow melts at all; rather, the birds seem to be moving altitudinally, spending the spring and summer in higher elevations feeding on alpine flowers and insects, and then moving to lower coastal habitats in the fall.
The hummingbird I am holding is now wearing a small aluminum band on his right leg. I open my hand and he zooms off into the frigid sunshine. Each banded bird I release is sent with the hope that it will be seen again, providing researchers with another piece of the life history puzzle of these amazingly tough and adaptive creatures.
— Kate McLaughlin, Project Director, The Alaska Hummingbird Project
The Alaska Hummingbird Project, Inc. is a small 501 (c) 3 scientific and educational non-profit that depends upon small grants and individual contributions to operate. Donations may be sent to: Alaska Hummingbird Project, Inc. PO Box 561, Cordova, Alaska 99574.
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