Blue-winged warbler observations

This dataset represents point observations of Blue-winged warblers (Vermivora pinus) between 1937 and 2008, compiled from a variety of data sources by the Avian Knowledge Network. Blue-winged warblers are designated as a priority migrant songbird species by the eBird project. For more information, please see http://ebird.org/content/primig/. This dataset is intended to characterize the general areas in which this species has been observed. This dataset is not intended for rigorous scientific analysis due to the varying quality and precision of the underlying data. Coordinates should be regarded as approximate due to the wide range in projects and protocols from which these data were obtained. The records generally lack critical information for statistically calculating density of this species at a given point. Users of this dataset are encouraged to cite the original observers and the effort of Avian Knowledge Network in compiling the underlying data used to create this dataset. Coordinate information contained in tabular data obtained from Avian Knowledge Network was used to create points within this shapefile, to which selected fields from the table were attached to provide additional information about the observation at that point.