Quiz 22: Wing patterns

With thanks to the online wing collection of the Slater Museum of Natural History, University of Puget Sound for allowing the use of their wing photos.

With thanks, again, to Brian E. Small for providing the beautiful photos. You can see lots more at his website, and clicking any of his photos links there as well.

White wing patches 2



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Question 1The species is:Red-bellied WoodpeckerRed-cockaded WoodpeckerRed-headed WoodpeckerRed-naped SapsuckerQuestion 2The large white wing patch covers all of the:

SecondariesGreater secondary covertsPrimariesSecondaries and primariesQuestion 2 Explanation:
The secondaries (including the tertials - the innermost secondaries) grow from the "forearm" bones, and are essentially all white in this species. Technically, there is a little black on the bases of the outer secondaries, and the outer web of the outermost secondary is black. This color contrasts with the slightly browner primaries (which grow from the "hand" bones) and makes it easy to distinguish the two feather groups here. When the wing is folded the blackish primaries are almost completely hidden under the stack of white secondaries.
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