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Some Hokkaido Winter Passerines

10,000 Birds

However (also according to the HBW), Common Redpolls in Alaska are able to survive at temperatures of “only” -54°C compared with -67°C in Hoary Redpolls. A surprising stronghold for Willow T**s in the UK is at abandoned coal mining sites – maybe they should thank Margaret Thatcher for her help in creating these sites.

Research 130
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The Glitter in the Green: In Search of Hummingbirds–A Hummer Book Review

10,000 Birds

Dunn starts in Alaska with the goal of seeing Rufous Hummingbird at the northern extreme of its migration (which he does with some effort and a few bear sightings) and ends in Tierra del Fuego, Argentina, “the end of the world,” with the sighting of a Green-backed Firecrown feeding at a firetree in cold drizzly rain.