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New Hampshire 1981-1986


General Methods
Sampling & coverage of blocks

Each block consisted of 1/6 of a USGS 7.5 minute topographic quad. One priority block was randomly selected per quad. All 178 established priority blocks as well as additional special area blocks were surveyed.

View blocks in the Mapping Tool >>

Coordination of coverage
Management of this project was accomplished with the help of coordinators in 20 regions.

Breeding Evidence Codes
Code Code description  (see handbook for full description & use suggestions)
OB Category - Observed: not breeding evidence
o Species (male or female) observed in its breeding season with no evidence of breeding. Not in suitable nesting habitat.
PO Category - possible breeding evidence
v Species (male or female) observed in suitable nesting habitat during its breeding season.
d Singing male, or courthip display of waterfowl or diurnal raptors.
PR Category - probable breeding evidence
P Pair observed in suitable nesting habitat during its breeding season.
T Territory presumed from observations of territorial behavior.
C Courtship behavior or copulation.
N Visiting probable nest site.
A Agitated behavior or anxiety calls from adult.
B Brood patch or cloacal protuberance.
E Excavation of nest holes, or nest building by wrens.
CO Category - confirmed evidence of breeding
DD Distraction display or injury feigning.
NB Nest building by any species except wrens.
UN Used nest found. Must be carefully identified if it is to be accepted.
FL Recently fledged young.
ON Adult(s) entering or leaving nest site in circumstance indicating occupied nest.
FF 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:
Information contained in this application does not necessarily have the endorsement of USGS.

Last updated: Site - May 2014; Content - various, depending on atlas.
Page generated on: 23-Jan-2018