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Melierax

Comparisons

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Aleutian Cackler (leucopareia) vs Ridgway's Cackler (minima) - Aleutians have white collar, Ridgway's has larger white cheek patch, very dark breast with some blackish gloss, as well as being smaller in size and having a rounder head and shorter bill.

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Eastern and Western Willets - T s semipalmata vs T s inornata

Eastern on left, Western on right. Western is larger, longer legged, paler overall. Eastern has a shorter thicker bill. There have been rumblings about splitting these into two separate species for years, but so far it has been shut down.

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