[order] APODIFORMES | [family] Trochilidae | [latin] Cynanthus doubledayi | [UK] Doubledays Hummingbird | [FR] Colibri circe | [DE] Blaukehl-Breitschnabelkolibri | [ES] Colibri Costeno | [NL] Doubleday’s Kolibire
Subspecies
| Genus | Species | subspecies | Breeding Range | Breeding Range 2 | Non Breeding Range |
| Cyanophaia | doubledayi | ||||
| Cynanthus | doubledayi | MA | s Mexico |
Physical charateristics
Male: Dark green above and below, with a blue throat (bird may look all black at a distance). Bill bright red, with a black tip. Forecrown iridescent blue-turquoise, throat violet blue and underparts more blue than nominate race C. latirostris. Female:
Identified by combination of red bill and unmarked, pearly gray throat; thin white line behind eye. Females of most other hummers have some spots on the throat.
Identified by combination of red bill and unmarked, pearly gray throat; thin white line behind eye. Females of most other hummers have some spots on the throat.
| wingspan min.: | 0 | cm | wingspan max.: | 0 | cm |
| size min.: | 9 | cm | size max.: | 10 | cm |
| incubation min.: | 0 | days | incubation max.: | 0 | days |
| fledging min.: | 0 | days | fledging max.: | 0 | days |
| broods: | 2 | eggs min.: | 2 | ||
| eggs max.: | 3 |
Range
Middle America : South Mexico
Habitat
Preferred habitats include canyons, foothills, and streambeds.
Reproduction
Breeding behavior is not well known. Male has soft jumbled song, not often heard; seems to defend territory mostly by perching high, watching for intruders and chasing them away.
Nest: Site is in deciduous shrub or low tree, saddled on horizontal or drooping branch or placed in fork, usually 3-
9′ above the ground. Nest (built by female) is a rather loosely made cup of grasses and spider webs, lined with plant down, the outside camouflaged with bits of bark and leaves. Unlike most hummingbird nests, outside usually not decorated with lichens.
Nest: Site is in deciduous shrub or low tree, saddled on horizontal or drooping branch or placed in fork, usually 3-
9′ above the ground. Nest (built by female) is a rather loosely made cup of grasses and spider webs, lined with plant down, the outside camouflaged with bits of bark and leaves. Unlike most hummingbird nests, outside usually not decorated with lichens.
Eggs: 2. White. Incubation is by female only; incubation period not well known, probably about 2 weeks or more.
Young: Female feeds young by inserti
ng her bill deep into their open mouths, then regurgitating food, probably including small insects and nectar. Development of young and age at first flight not well known. Often raises 2 broods per year.
Feeding habits
Mostly nectar and small insects.
Feeds on nectar of flowers, especially red or orange tubular flowers such as bouvardia or desert honeysuckle, and will also feed on substitutes such as sugar-water mixes. Also eats many small insects and spiders.
Behavior:
Feeds by hovering and inserting its bill and long tongue in flowers to take nectar. Will also hover and perch at hummingbird feeders. Flies out from a perch to take insects in the air or from foliage, and will take small spiders (or trapped insects) from
spider webs.
Feeds on nectar of flowers, especially red or orange tubular flowers such as bouvardia or desert honeysuckle, and will also feed on substitutes such as sugar-water mixes. Also eats many small insects and spiders.
Behavior:
Feeds by hovering and inserting its bill and long tongue in flowers to take nectar. Will also hover and perch at hummingbird feeders. Flies out from a perch to take insects in the air or from foliage, and will take small spiders (or trapped insects) from
spider webs.
Conservation
This species has a large range, with an estimated global Extent of Occurrence of 10,000,000 km2. It has a large global population estimated to be 5,000,000-6,400,000 individuals (Wetlands International 2002). Global population trends have not been quantified, but the species is not believed to approach the thresholds for the population decline criterion of the IUCN Red List (i.e. declining more than 30% in ten years or three generations). For these reasons, the species is evaluated as Least Concern.
Migration
Migratory in USA and extreme N Mexico; resident elsewhere in its breeding range. N migrants winter S to N Guerrero; questionable reports of wintering in Oxaca. Birds in USA begin arriving at some locations mid-Mar and depart by mid-Oct. Several extralimital records during breeding season likely to be result of post-breeding wandering; vagrant to Baja California, Oct-Jan.
Distribution map
