|
BREEDING CODE is based on increasing importance of breeding status:
|
Species Observed |
| O |
Species
observed in its breeding season but not in suitable nesting habitat, or
species soaring high overhead, or a colonially nesting species not in the
nesting colony. |
|
Possible
Breeding = PO |
| SH |
Species
observed in breeding season in suitable nesting habitat |
| SM |
Singing male
present |
|
Probable Breeding=
PR |
| S |
Seven or more
territorial males observed on at least two days, a week or more apart
during the breeding season. |
| P |
Pair observed
in suitable habitat |
| T |
Bird or pair
on territory, or singing mail present on more than one date |
| C |
Courtship
behavior |
| V |
Visiting
probable nest site, or nest building by wrens or woodpeckers |
| A |
Agitated
behavior or anxiety calls |
| B |
Brood patch or cloacal protuberance |
| N |
Nest-building
or excavation of nest hole |
|
Confirmed breeding
= CO |
| SE |
Seven or more
territorial males observed only once in the breeding season. |
| DD |
Distraction
display |
| NU |
Used nest or
egg shells |
| FE |
Female with
eggs in oviduct |
| FY |
Fledged young
or downy young |
| ON |
Occupied nest
(adults entering or leaving, contents unidentified) |
| FS |
Adults with
fecal sac or food for young |
| NE |
Nest with
eggs |
| NY |
Nest with
young, or identified dead nestling |
|
