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Hemiprocne
Treeswifts or crested swifts are a family (biology), family, the Hemiprocnidae, of aerial near passerine birds, closely related to the Swift (bird), true swifts. The family contains a single genus, ''Hemiprocne'', with four species. They are distributed from India and Southeast Asia through Indonesia to New Guinea and the Solomon Islands. Treeswifts are small to medium-sized swifts, ranging in length from 15 to 30 cm. They have long wings, with most of the length coming from the length of the flight feather, primaries; their arms are actually quite short. They visibly differ from the other swifts in matters of plumage, which is softer, and they have crests or other facial ornaments, and long, forked tails. Anatomically they are separated from the true swifts by skeletal details in the cranium and palate, the anatomy of the tarsus, and a nonreversible hind toe that is used for perching on branches (an activity in which true swifts are unable to engage). The males have iridescen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hemiprocne Coronata
The crested treeswift (''Hemiprocne coronata'') is a species of tree swift. It was for some time considered the same species as its eastern relative, the grey-rumped treeswift, gray-rumped treeswift (''Hemiprocne longipennis''), but they do not interbreed where their ranges overlap. It is distinct in flight, with long, bowed wings and a deeply forked tail that usually appears narrow and pointed. Description The crested treeswift is a large slender bird at length. This species is dove grey above and white below. The long swept-back wings are a darker grey above. This treeswift has a crest and a long, deeply forked tail. The adult male has orange cheeks and ear coverts with a narrow streak of white under the eye and a trace of a white supercilium. The female also has a thin white stripe below the eye running below the grey cheek and ear coverts. Young birds have a dark grey head and wings but the feathers are edged in white and the rest of the soft plumage is much streakier than th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crested Treeswift
The crested treeswift (''Hemiprocne coronata'') is a species of tree swift. It was for some time considered the same species as its eastern relative, the gray-rumped treeswift (''Hemiprocne longipennis''), but they do not interbreed where their ranges overlap. It is distinct in flight, with long, bowed wings and a deeply forked tail that usually appears narrow and pointed. Description The crested treeswift is a large slender bird at length. This species is dove grey above and white below. The long swept-back wings are a darker grey above. This treeswift has a crest and a long, deeply forked tail. The adult male has orange cheeks and ear coverts with a narrow streak of white under the eye and a trace of a white supercilium. The female also has a thin white stripe below the eye running below the grey cheek and ear coverts. Young birds have a dark grey head and wings but the feathers are edged in white and the rest of the soft plumage is much streakier than that of the adults. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hemiprocne Comata
The whiskered treeswift (''Hemiprocne comata'') is a species of bird in the family Hemiprocnidae. It is the smallest of 4 species in genus ''Hemiprocne'' and is found in Brunei, Indonesia, Malaysia, Myanmar, the Philippines, Singapore, and Thailand. Its natural habitats are subtropical or tropical moist lowland forest, subtropical or tropical mangrove forest, and subtropical or tropical moist montane forest Montane ecosystems are found on the slopes of mountains. The alpine climate in these regions strongly affects the ecosystem because temperatures lapse rate, fall as elevation increases, causing the ecosystem to stratify. This stratification is .... Description Medium, unique white elongated 'whiskers' above and below eye, shaggy crest, deeply forked tail, sexes similar. Male lores black; two elongated white 'whiskers', one above eye from forehead extending past nape; ear chestnut; rest of head and throat, tail, upper and underwing coverts, and primaries dark metallic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moustached Treeswift (Hemiprocne Mystacea)
The moustached treeswift (''Hemiprocne mystacea'') is a species of bird in the family Hemiprocnidae. It is found in the northern Moluccas, New Guinea, Bismarck and the Solomon Islands archipelagos. Its natural habitats are subtropical or tropical moist lowland forests, subtropical or tropical mangrove forests, and subtropical or tropical moist montane forest Montane ecosystems are found on the slopes of mountains. The alpine climate in these regions strongly affects the ecosystem because temperatures lapse rate, fall as elevation increases, causing the ecosystem to stratify. This stratification is ...s. The Moustached treeswift (Hemiprocne mystacea), a species of bird in the family Hemiprocnidae, is known for its remarkable aerial foraging abilities. Recent scientific studies, such as Rohwer and Wang's quantitative analysis in 2010, have highlighted the unique feather replacement patterns that contribute to its agile flight and successful prey capture. References mou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hemiprocne Longipennis
The grey-rumped treeswift (''Hemiprocne longipennis'') is a species of bird in the Hemiprocnidae family. Currently, four extant species are placed in the family. Like the other members of the Hemiprocnidae, this species is closely related to true swifts, but unlike true swifts, the treeswifts are arboreal in nature, often seen perched on trees and high-tension power transmission lines, and on pylons. When perched, the wing tips cross over the tail. This species is commonly found in peninsular Malaysia, but has an extremely large range with limited information about the population trend,.Jeyarajasingam. A. and Pearson. A. 2012. A Field Guide to the Birds of Peninsular Malaysia and Singapore. Oxford University press Description Adult males have a distinct dark grey throat and chest contrasting with a white belly. Ear coverts are dull orange red/chestnut colored. Adult females lack the dull orange-red/chestnut coloration on the ear coverts. When perched, the wing tips cross over ac ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Handbook Of The Birds Of The World
The ''Handbook of the Birds of the World'' (HBW) is a multi-volume series produced by the Spanish publishing house Lynx Edicions in partnership with BirdLife International. It is the first handbook to cover every known living species of bird. The series was edited by Josep del Hoyo, Andrew Elliott, Jordi Sargatal and David A. Christie. All 16 volumes have been published. For the first time an animal class will have all the species illustrated and treated in detail in a single work. This has not been done before for any other group in the animal kingdom. Material in each volume is grouped first by family, with an introductory article on each family; this is followed by individual species accounts (taxonomy, subspecies and distribution, descriptive notes, habitat, food and feeding, breeding, movements, status and conservation, bibliography). In addition, all volumes except the first and second contain an essay on a particular ornithological theme. More than 200 renowned sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Avian Incubation
Egg incubation is the process by which an egg, of oviparous (egg-laying) animals, develops an embryo within the egg, after the egg's formation and ovipositional release. Egg incubation is done under favorable environmental conditions, possibly by brooding and hatching the egg. Multiple and various factors are vital to the incubation of various species of animal. In many species of reptile for example, no fixed temperature is necessary, but the actual temperature determines the sex ratio of the offspring. In birds, the sex of offspring is genetically determined, but in many species a constant and particular temperature is necessary for successful incubation. Especially in poultry, the act of sitting on eggs to incubate them is called brooding. The action or behavioral tendency to sit on a clutch of eggs is also called broodiness, and most egg-laying breeds of poultry have had this behavior selectively bred out of them to increase production. Avian incubation A wide rang ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Egg (biology)
An egg is an organic vessel grown by an animal to carry a possibly fertilization, fertilized egg cell (a zygote) and to egg incubation, incubate from it an embryo within the egg until the embryo has become an animal fetus that can survive on its own, at which point the animal hatches. Most arthropods, vertebrates (excluding live-bearing mammals), and Mollusca, mollusks lay eggs, although some, such as scorpions, do not. Reptile eggs, bird eggs, and monotreme eggs are laid out of water and are surrounded by a protective eggshell, shell, either flexible or inflexible. Eggs laid on land or in nests are usually kept within a warm and favorable temperature range while the embryo grows. When the embryo is adequately developed it hatches, i.e., breaks out of the egg's shell. Some embryos have a temporary egg tooth they use to crack, pip, or break the eggshell or covering. The largest recorded egg is from a whale shark and was in size. Whale shark eggs typically hatch within the m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
