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Rhode Island 1982-1987 (pending review)

Methods


General Methods
Sampling & coverage of blocks

Each block consisted of 1/6 of a USGS 7.5 minute topographic quad. The state contained a total of 165 blocks, all of which were surveyed.


View blocks in the Mapping Tool >>

Coordination of coverage
Fieldwork of this project was coordinated at the state level by Fieldwork Coordinator Christohper J. Raithel, Nongame Wildlife Program, Rhode Island Division of Fish & Wildlife.

Breeding Evidence Codes
Code Code description  (see handbook for full description & use suggestions)
PO Category - possible breeding evidence
E Species (male or female) observed in its breeding season in suitable nesting habitat, with no other indication of breeding noted.
PR Category - probable breeding evidence
P Pair observed in suitable nesting habitat during its breeding season.
T Permanent territory presumed through either defense (e.g. chasing of other birds) or song at same location on at least 2 occasions 7 days or more apart.
C Courtship behavior or copulation. Not used for waterfowl, shorebirds, and diurnal raptors.
N Visiting probable nest site.
A Agitated behavior or anxiety calls from adult.
B Nest building by wrens or excavation of holes by woodpeckers.
CO Category - confirmed evidence of breeding
NB Nest building by any species except wrens and woodpeckers.
DD Distraction display or injury feigning.
UN Used nests or egg shells found. Must be carefully identified, if they are to be accepted.
FL Recently fledged young (of altricial species) incapable of sustained flight or downy young (of precocial species) restricted to the natal area by dependance on adults or limited mobility.
ON Adults entering or leaving a nest site in circumstances indicating occupied nest. To be used for nests which are too high (e.g. the tops of trees) or enclosed (e.g. chimneys) for the contents to be seen.
AY Adults with fecal sac or food for young.
NE Nest with egg(s) or adult sitting on nest.
NY Nest with young or downy young of waterfowl, quail, waders, etc.
Habitat Codes
- - this atlas does not record habitat on the field card - -

Where this information came from
Most of the information on this page is from the project's publication or Handbook (guide for field work).
U.S. Department of the Interior || U.S. Geological Survey || Patuxent Wildlife Research Center  Laurel, MD, USA 20708-4038
This site is: http://www.pwrc.usgs.gov/bba
Information contained in this application does not necessarily have the endorsement of USGS.
Contact: mwimer@usgs.gov

Last updated: Site - May 2014; Content - various, depending on atlas.
Page generated on: 24-Nov-2014