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The Subspecies of the Mountain Chickadee

By Joseph Grinnell
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About This Book

A systematic study of geographic variation in the mountain chickadee based on hundreds of museum skins and field collections, assessing differences in coloration, tail length, and measurements across the species range. The author maps distribution patterns, notes generally non-migratory behavior with isolated southern populations, and recognizes distinct regional forms: a long-tailed, cinnamon-tinged Rocky Mountain type and several Pacific-district variants with shorter tails and buffy or leaden-gray tones. Morphological comparisons, measurement tables, and figures underpin the delineation and diagnosis of the recognized subspecies.

About the Author

Grinnell, Joseph portrait

Joseph Grinnell

Joseph Grinnell was an American naturalist and ornithologist known for his contributions to the study of wildlife in North America. His work often focused on the ecology and behavior of birds, and he is particularly recognized for his research on the Mountain Chickadee. Grinnell's notable publications include "Gold Hunting in Alaska," which reflects his adventurous spirit and interest in the natural world, and "The Subspecies of the Mountain Chickadee," which showcases his dedication to ornithological research. Through his writings, Grinnell has made significant contributions to the understanding of avian species and their habitats.

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