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American dipper
The American dipper (Cinclus mexicanus), also known as a water ouzel, is a semiaquatic bird species native from North America.
The American dipper is a stocky, grey bird with a head sometimes tinged with brown, and white feathers on the eyelids that cause the eyes to flash white as the bird blinks. On average, it measures 16.5 cm (6.5 in) in length, has a wingspan of 23 cm (9.1 in), and weighs 46 g (1.6 oz).
The American dipper was described by English zoologist William Swainson in 1827 based on a specimen that had been collected in Mexico by English naturalist William Bullock. Swainson placed the new species with the dippers in the genus Cinclus and coined the current binomial name Cinclus mexicanus. The type locality is Temascaltepec de González in Mexico.
The five subspecies are:
The American dipper inhabits the mountainous regions of North America from Alaska to Panama. It is usually a permanent resident, moving slightly south or to lower elevations if necessary to find food or unfrozen water. The presence of this indicator species shows good water quality; it has vanished from some locations due to pollution or increased silt load in streams.
The American dipper defends a linear territory along streams. In most of its habits, it closely resembles its European counterpart, the white-throated dipper (Cinclus cinclus), which is also sometimes known as a water ouzel.
The American dipper's nest is a globe-shaped structure with a side entrance, close to water, on a rock ledge, river bank, behind a waterfall, or under a bridge. The normal clutch is two to four white eggs, incubated solely by the female, which hatch after about 15–17 days, with another 20–25 days to fledging. The male helps to feed the young. The maximum recorded age from ring-recovery data of an American dipper is 8 years and 1 month for a bird ringed and recovered in South Dakota.
It feeds on aquatic insects and their larvae, including dragonfly nymphs, small crayfish, and caddisfly larvae. It may also take tiny fish or tadpoles.
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American dipper
The American dipper (Cinclus mexicanus), also known as a water ouzel, is a semiaquatic bird species native from North America.
The American dipper is a stocky, grey bird with a head sometimes tinged with brown, and white feathers on the eyelids that cause the eyes to flash white as the bird blinks. On average, it measures 16.5 cm (6.5 in) in length, has a wingspan of 23 cm (9.1 in), and weighs 46 g (1.6 oz).
The American dipper was described by English zoologist William Swainson in 1827 based on a specimen that had been collected in Mexico by English naturalist William Bullock. Swainson placed the new species with the dippers in the genus Cinclus and coined the current binomial name Cinclus mexicanus. The type locality is Temascaltepec de González in Mexico.
The five subspecies are:
The American dipper inhabits the mountainous regions of North America from Alaska to Panama. It is usually a permanent resident, moving slightly south or to lower elevations if necessary to find food or unfrozen water. The presence of this indicator species shows good water quality; it has vanished from some locations due to pollution or increased silt load in streams.
The American dipper defends a linear territory along streams. In most of its habits, it closely resembles its European counterpart, the white-throated dipper (Cinclus cinclus), which is also sometimes known as a water ouzel.
The American dipper's nest is a globe-shaped structure with a side entrance, close to water, on a rock ledge, river bank, behind a waterfall, or under a bridge. The normal clutch is two to four white eggs, incubated solely by the female, which hatch after about 15–17 days, with another 20–25 days to fledging. The male helps to feed the young. The maximum recorded age from ring-recovery data of an American dipper is 8 years and 1 month for a bird ringed and recovered in South Dakota.
It feeds on aquatic insects and their larvae, including dragonfly nymphs, small crayfish, and caddisfly larvae. It may also take tiny fish or tadpoles.