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1. Breeding Bird Survey Grid for Lower 48 States, Alaska and Southern portion of Canada [USGS_PWRC_BreedingBirdSurveyGrid]
This is a polygon coverage of the mathematically generated grid for North America, excluding Mexico and the Northern portion of Canada. The grid is used in the statistical analysis of the Breeding ...


2. Plant and Animal Phenology Data for the United States [USGS_USA_NationalPhenologyNetwork]
ABSTRACT: As of January 1, 2013, the dataset contains phenology data on 591 species of plants and animals, with 7,512 locations registered across the United States. Protocols used are documented in ...


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