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Breeding Habitat Species Groups | pct | N | |||
---|---|---|---|---|---|
Grassland Birds | 23.3%** | N=28 | tend map |   | species richness map |
Wetland/Open Water Birds | 66.5%** | N=86 | tend map |   | species richness map |
Scrub/Successional Birds | 39.6% | N=86 | tend map |   | species richness map |
Woodland Birds | 57.4%** | N=133 | tend map |   | species richness map |
Urban Birds | 28.3% | N=14 | tend map |   | species richness map |
Nest Type Species Groups | pct | N | |||
Cavity Nesting | 61.0% | N=62 | tend map |   | species richness map |
Open-cup (Passerines and Cuckoos) | 43.0% | N=184 | tend map |   | species richness map |
Migration Status (Landbirds and Hawks) | pct | N | |||
Permanent Resident | 55.3%** | N=92 | tend map |   | species richness map |
Short-distance Migrant | 46.1%** | N=107 | tend map |   | species richness map |
Neotropical Migrant | 46.3% | N=136 | tend map |   | species richness map |
Nest Location Species Groups (Passerines and Cuckoos) | pct | N | |||
Ground or Low Nesting | 36.1% | N=117 | tend map |   | species richness map |
Mid-story or Canopy Nesting | 55.7% | N=121 | tend map |   | species richness map |
All Species | pct | N | |||
all species | 51.5 | N=421 | tend map |   | species richness map |
John R. SauerLast updated 3 December 1999
Patuxent Wildlife Research Center
11500 American Holly Drive
Laurel, Maryland 20708-4017 USA
E-mail: jrsauer@usgs.gov