H
Species observed in breeding season in possible nesting habitat
S
Singing, drumming or displaying individual present in breeding season in possible nesting habitat
P
Pair observed in suitable nesting habitat in breeding season
T
Territorial behaviour (song, fights with neighbour etc.) on at least two different days a week or more apart at same place indicating a permanently occupied territory
D
Courtship behavior (aerial displays, courtship feeding) or copulation
N
Visiting probable nest site
A
Agitated behavior and/or anxiety calls from an adult, suggesting presence of nearby nest or young
I
Brood patch (Note: code only applies to birds observed in hand and is reserved for experienced birder only)
B
Nest-building or excavating of nest-hole observed
DD
Distraction display (especially injury feigning, such as broken wing display) or attacking/dive-bombing humans in defense of unobserved nest or young
UN
Used nest (occupied within period of survey); includes inactive nests
FL
Recently fledged young that are incapable of sustained flight
ON
Adults entering or leaving nest-site in circumstances indicating occupied nest (including high nests or nest-holes, the contents of which can not be seen) or adult seen incubating
FY
Adult carrying food for young
NY
Nest with young seen or heard
Breeding categories for internal use (can't be used for recording sightings)
99
Not observed despite active search
Observations
Statistics