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South Carolina 1988-1995

Methods


General Methods
Sampling & coverage of blocks

Each block consisted of 1/6 of a USGS 7.5 minute topographic quad. One block of every other quad was selected as a priority block. Of a total of 252 priority blocks, 250 were surveyed. Observations in special areas made during the atlas period were also included. Casual observations were gathered at the quad-level, and thus not mapped by block.


View blocks in the Mapping Tool >>

Coordination of coverage
Management of this project was accomplished by John Cely, who coordinated the effort of more than 175 volunteers.

Breeding Evidence Codes
Code Code description  (see handbook for full description & use suggestions)
PO Category - possible breeding evidence
SH Species (male or female) observed in suitable nesting habitat during its breeding season.
SM Singing male present.
PR Category - probable breeding evidence
P Pair observed in suitable nesting habitat during its breeding season.
T Bird or pair on territory, or singing male present on more than one date.
C Courtship behavior or copulation.
V Visiting probable nest site, or nest building by wrens or woodpeckers.
A Agitated behavior or anxiety calls from adult.
B Brood patch or cloacal protuberance.
N Nest building or excavation of a nest hole.
CO Category - confirmed evidence of breeding
DD Distraction display or injury feigning.
NU Used nests or egg shells found. Must be carefully identified, if they are to be accepted.
FE Female with egg in oviduct. (For banders.)
FY Recently fledged young or downy young incapable of sustained flight.
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.
FS Adults with fecal sac or food for young.
NE Nest with egg(s).
NY Nest with young seen or heard.
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: 23-Nov-2014