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Tree Swift
Treeswifts or crested swifts are a family, the Hemiprocnidae, of aerial near passerine birds, closely related to the 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 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 iridescent mantle plumage. They also have diastataxic ... [...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 has a thin white stripe below the eye running along the cheek. 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. They are found in small groups ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iridescent
Iridescence (also known as goniochromism) is the phenomenon of certain surfaces that appear to gradually change color as the angle of view or the angle of illumination changes. Examples of iridescence include soap bubbles, feathers, butterfly wings and seashell nacre, and minerals such as opal. It is a kind of structural coloration that is due to wave interference of light in microstructures or thin films. Pearlescence is a related effect where some or most of the reflected light is white. The term pearlescent is used to describe certain paint finishes, usually in the automotive industry, which actually produce iridescent effects. Etymology The word ''iridescence'' is derived in part from the Greek word ἶρις ''îris'' ( gen. ἴριδος ''íridos''), meaning ''rainbow'', and is combined with the Latin suffix ''-escent'', meaning "having a tendency toward". Iris in turn derives from the goddess Iris of Greek mythology, who is the personification of the rainbow and a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Moustached Treeswift
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 forests. References moustached treeswift Birds of the Maluku Islands Birds of New Guinea Birds of the Bismarck Archipelago Birds of the Solomon Islands moustached treeswift The moustached treeswift (''Hemiprocne mystacea'') is a species of bird in the family Hemiprocnidae. It is found in the northern Moluccas, New Guinea, Bismarck Archipelago, Bismarck and the Solomon Islands (archipelago), Solomon Islands archipela ... Taxonomy articles created by Polbot {{apodiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Whiskered Treeswift
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. Description medium, unique white elongated 'whiskers' above and below eye, shaggy crest, deeply forked tail, sexes similar. male lores black; 2 elongated white 'whiskers,' 1 above eye from forehead extending past nape; ear chestnut; rest of head and throat, tail, upper and underwing coverts, and primaries dark metallic blue; each secondary has a large white spot on inner web; back to uppertail coverts, breast and upper belly bronze olive; lower belly and undertail coverts white. female lacks chestnut ear. imm plumage not known. bill black; eye dark brown; legs purplish br ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grey-rumped Treeswift
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] |
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 in contrast, 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 wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Egg (biology)
An egg is an organic vessel grown by an animal to carry a possibly fertilized egg cell (a zygote) and to 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 such as insects, vertebrates (excluding live-bearing mammals), and 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 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 mother. At and up to , the o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mangrove
A mangrove is a shrub or tree that grows in coastal saline water, saline or brackish water. The term is also used for tropical coastal vegetation consisting of such species. Mangroves are taxonomically diverse, as a result of convergent evolution in several plant families. They occur worldwide in the tropics and subtropics and even some temperate coastal areas, mainly between latitudes 30° N and 30° S, with the greatest mangrove area within 5° of the equator. Mangrove plant families first appeared during the Late Cretaceous to Paleocene epochs, and became widely distributed in part due to the plate tectonics, movement of tectonic plates. The oldest known fossils of Nypa fruticans, mangrove palm date to 75 million years ago. Mangroves are salt-tolerant trees, also called halophytes, and are adapted to live in harsh coastal conditions. They contain a complex salt filtration system and a complex root system to cope with saltwater immersion and wave action. They are ad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grey-rumped Treeswift
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] |
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 has a thin white stripe below the eye running along the cheek. 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. They are found in small groups ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Old-growth Forest
An old-growth forestalso termed primary forest, virgin forest, late seral forest, primeval forest, or first-growth forestis a forest that has attained great age without significant disturbance, and thereby exhibits unique ecological features, and might be classified as a climax community. The Food and Agriculture Organization of the United Nations defines primary forests as naturally regenerated forests of native tree species where there are no clearly visible indications of human activity and the ecological processes are not significantly disturbed. More than one-third (34 percent) of the world's forests are primary forests. Old-growth features include diverse tree-related structures that provide diverse wildlife habitat that increases the biodiversity of the forested ecosystem. Virgin or first-growth forests are old-growth forests that have never been logged. The concept of diverse tree structure includes multi-layered canopies and canopy gaps, greatly varying tree height ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Whiskered Treeswift
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. Description medium, unique white elongated 'whiskers' above and below eye, shaggy crest, deeply forked tail, sexes similar. male lores black; 2 elongated white 'whiskers,' 1 above eye from forehead extending past nape; ear chestnut; rest of head and throat, tail, upper and underwing coverts, and primaries dark metallic blue; each secondary has a large white spot on inner web; back to uppertail coverts, breast and upper belly bronze olive; lower belly and undertail coverts white. female lacks chestnut ear. imm plumage not known. bill black; eye dark brown; legs purplish br ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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