Second Atlas of Breeding Birds in Pennsylvania: A Review by an Atlas Novice
10,000 Birds
APRIL 2, 2013
For ornithologists, it is the documentation of a multi-year project designed to record the distribution and abundance of birds in a specific area (in North America, usually a state or a province), utilizing a mapping method involving blocks and grids. You can see the Species Account for Henslow’s Sparrow above, in the banner photo.
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