This is the 15th year of continuous daily publication for 365Caws. All things considered, it's likely it will be the last year as it is becoming increasingly difficult for me to find interesting material. However, I hope that I may have inspired someone to a greater curiosity about the natural world with my natural history posts, or encouraged a novice weaver or needleworker. If so, I've done what I set out to do.
Thursday, February 21, 2019
Haemorhous Purpureus, Purple Finch
Day 131: Ornithologist-naturalist Roger Tory Peterson had the most marvelous way with words. In his field guide, he aptly describes the Purple Finch as looking "like a sparrow dipped in raspberry juice." While this description could also apply to House Finch, where the two species occur together, another distinctive marking separates them in the field, and for this aide-memoire, you can thank your correspondent: "Houses have shingles," i.e., the breast is strongly marked by dark streaks, whereas in Purple Finch, the breast is clear. However, when you're updating your Life List, be sure to make a note in your field guide. Purple Finch has been the target of those fiendish taxonomists and is no longer called "Carpodacus purpureus." It is now Haemorhous purpureus, "Haemorhous" is also reflected in the nomenclature for Cassin's Finch and House Finch after DNA proved that the American species are unrelated to Eurasian rosefinches.
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