Lark Sparrow at Malheur NWR, Oregon on 29 May, 2010 by Greg Gillson.
[Click to read all Memorial Day weekend at Malheur posts.]
Lark Sparrows are found in some of the more grassy parts of the Malheur area. They frequent pastures and roadside edges with grasses amid the sage.
The head of the Lark Sparrow is often featured as an example in naming the various feather tracts of the head. You want field marks for the head? Lark Sparrows have them all!