Back to Idaho Bird Distribution
BREEDING CRITERIA
Breeding Criteria
A "B" in the latilong maps designates confirmed
evidence of breeding.
Confirmed breeding evidence must include at least one of the
following:
1.
Nest with young seen or heard.
2.
Examined specimen of nestling
3.
Nest with viable egg(s).
4.
Fledgling(s) (young away from the nest but without
adult-sized flight feathers).
5.
Occupied nest (adults regularly entering and
leaving a nest).
6.
Adults attending young (adults carrying fecal sacs
or food for young).
7.
Recently used nest with eggshells (must be in good
condition and eggshells identifiable.
Circumstantial evidence of breeding is designated by a
"b" in the latilong maps.
Circumstantial breeding evidence must include at least one of the
following:
1.
Physiological evidence (vascularized brood patch,
cloacal protuberance, egg in oviduct).
2.
Singing male or other territorial defense.
3.
Courtship behavior or copulation.
4.
Distraction display, agitated behavior, or anxiety
calls from adults.
5.
Nest building.
6.
Adults visiting a probable nest site.
7.
Pair observed in suitable habitat in breeding
season.
BREEDING BY
LATILONG
(The following information is based on he 2nd edition
published in 1998)
A total of 252 species are confirmed or probable breeders in
Idaho ("B" or "b").
A total of 239 species are confirmed breeders in Idaho. The thirteen species which are probable but
not confirmed breeders are: Horned Grebe, Green Heron, Snowy Plover, Common
Tern, Black-billed Cuckoo, Least Flycatcher, Purple Martin, Chestnut-sided
Warbler, Ovenbird, Indigo Bunting, clay-colored Sparrow, Great-tailed Grackle,
and Gray-crowned Rosy Finch. Several of
species are very likely regular breeders, or occasional breeders in the4
state. Birders are encouraged to pay
special attention to breeding evidence when these species are seen in breeding
habitat. The breeding distribution
totals ("B" or "b") for each latilong are summarized in
this latilong map.
North
|
169 |
|||||
|
174 |
86 |
||||
|
161 |
130 |
96 |
|||
|
146 |
128 |
127 |
158 |
||
|
185 |
114 |
163 |
122 |
122 |
158 |
|
159 |
168 |
175 |
136 |
161 |
180 |
|
147 |
123 |
144 |
177 |
190 |
149 |
South
West
East
