Code |
Code description
(see handbook for full description & use suggestions) |
OB Category - Observed: not breeding evidence
|
X |
Species (male or female) observed in its breeding season with no evidence of breeding. |
PO Category - possible breeding evidence
|
SH |
Species (male or female) observed in suitable nesting habitat during its breeding season. |
SM |
Singing male present, or breeding calls heard, in suitable nesting habitat in breeding season. |
PR Category - probable breeding evidence
|
P |
Pair observed in suitable nesting habitat during its breeding season. |
T |
Permanent territory presumed through registration of territorial behavior (song, etc.) on at least 2 days, 7 days or more appart, at the same place. |
D |
Courtship of display between a male and a female or 2 males, including courtship feeding or copulation. |
V |
Visiting probable nest site. |
A |
Agitated behavior or anxiety calls from adult. |
B |
Brood patch or cloacal protuberance. |
CO Category - confirmed evidence of breeding
|
N |
Nest building or excavation of a nest hole. |
DD |
Distraction display or injury feigning. |
NU |
Used nests or egg shells found. Must be carefully identified, if they are to be accepted. |
FY |
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. |
AE |
Adult leaving or entering nest sites in circumstances indicating occupied nest (including high nests, nest holes, or nest boxes, the content of which cannot be seen). |
FS |
Adults with fecal sac or food for young. |
NE |
Nest with egg(s). |
NY |
Nest with young seen or heard. |