2
Species heard or observed within safe dates, and in suitable breeding habitat.
3
Territorial behavior, including counter singing males
4
Pair (male and female) of a species interacting non-aggressively and in close proximity to one another, within safe dates, and in suitable breeding habitat.
5
Singing male or another territorial behaviour at the same location at least twice.
6
Courtship behavior (aerial displays, courtship feeding) or copulation
7
Repeatedly visiting probable nest site or nest building by wrens, woodpeckers, kingfisher...
8
Agitated behavior and/or anxiety calls from an adult, suggesting presence of nearby nest or young (Note: does not include response as a result of 'pishing', tape playback, or presence of predator)
9
Gravid condition (egg observed in oviduct) or highly vascularized, fluid-filled (edematous) brood patch (Note: code only applies to birds observed in hand and is reserved for experienced birder only)
10
Nest building observed at nest site (Note: for nest building by wrens, woodpeckers, kingfisher...)
11
Distraction display (especially injury feigning, such as broken wing display) or attacking/dive-bombing humans in defense of unobserved nest or young
12
Used nest; includes inactive nests, but only those built during atlas period
13
Recently fledged young that are incapable of sustained flight
14
Occupied nest, but contents not observed; adults entering and remaining for a period of time, then leaving or exchanging duties
15
Adult carrying a fecal sac
16
Adult carrying food for young within safe date
17
Nest with eggs or identifiable eggshells found below nest
18
Nest with adult incubating
19
Nest with young (nestlings observed or heard) or identifiable dead nestlings
Only if not any case above is applicable
99
Not observed despite active search
Sightings
Stats
