This data set contains sensitive biological resource data for wading
birds, shorebirds, waterfowl, diving birds, seabirds, raptors, gulls,
and terns in Puget Sound and Strait of Juan de Fuca, Washington. Vector
polygons in this data set represent locations of bird resting, feeding,
migratory staging, and wintering sites. Species-specific abundance,
seasonality, status, life history, and source information are stored in
relational data tables designed to be used in conjunction with this
spatial data layer. This data set comprises a portion of the
Environmental Sensitivity Index (ESI) data for Puget Sound and Strait of
Juan de Fuca, Washington. ESI data characterize the marine and coastal
environments and wildlife by their sensitivity to spilled oil. The ESI
data include information for three main components: shoreline habitats,
sensitive biological resources, and human-use resources. See also the
NESTS (Nest Points) data layer, part of the larger Puget Sound and
Strait of Juan de Fuca ESI database, for additional bird information.