Vesper Sparrow Pooecetes gramineus
10,000 Birds
NOVEMBER 2, 2011
Between the two breeding bird atlases in the state – one done in the early ’80s and one in the early ’00s – the number of atlas blocks with Vesper Sparrows declined 49%, a decline that is echoed in breeding bird survey routes as well. What has caused the decline? What has caused the decline? … a.
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