This article started out as a bit of an argument. Jerry Liguori and Brian Sullivan, in a previous article in Birding, presented evidence against the conventional wisdom that gray Northern Harriers are necessarily older m

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Date: 2015-02-27 22:35:08 Bird anatomy Feathers Birds Plumage Flight feather Bird Common murre Biota Birds of North America Humphrey-Parkes terminology Teleostomi		This article started out as a bit of an argument. Jerry Liguori and Brian Sullivan, in a previous article in Birding, presented evidence against the conventional wisdom that gray Northern Harriers are necessarily older m Add to Reading List Source URL: www.birdpop.org Download Document from Source Website File Size: 1,21 MB Share Document on Facebook

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