| 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. |
|
PO Category - possible breeding evidence
|
| X |
Species (male or female) observed in suitable nesting habitat during its breeding season. |
|
PR Category - probable breeding evidence
|
| P |
Pair observed in suitable nesting habitat during its breeding season. |
| S |
Permanent territory presumed through song at same location on at least 2 occasions 7 days or more apart. |
| T |
Permanent territory presumed through defense of territory (e.g. chasing individuals of the same species). |
| C |
Courtship behavior or copulation. |
| 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
|
| CN |
Carrying nesting material, such as sticks or grass. |
| NB |
Nest building at the actual nest site. |
| PE |
Physiological evidence of breeding (for use by banders only). |
| DD |
Distraction display or injury feigning. |
| UN |
Used nests or egg shells found. Must be carefully identified, if they are to be accepted. |
| PY |
Precocial young. |
| FL |
Recently fledged young incapable of sustained flight. |
| ON |
Occupied nest. To be used for nests too high for contents to be seen. |
| CF |
Adult carrying food for young. |
| FY |
Adult feeding recently fledged young. |
| FS |
Adult carrying fecal sac. |
| NE |
Nest with egg(s). Note: presence of cowbird eggs or young is confirmation of both cowbird and host species. |
| NY |
Nest with young seen and heard. Note: presence of cowbird eggs or young is confirmation of both cowbird and host species. |
