(Muscicapidae)
Class: Aves
Order: Passeriformes
Suborder: Passeri (Oscines)
Family: Muscicapidae
Thumbnail description
A large, highly variable group consisting of about 135 species of songbirds. They are small-to medium-sized perching birds, sometimes quite colorful; most feed by making aerial sallies from an exposed perch to catch their prey of flying insects
Size
Body length 3–9 in (7.6–23 cm)
Number of genera, species
16 genera, 135 species, including 9 genera (109 species) of Muscicapinae (typical Old World flycatchers) and 7 genera (26 species) of Platysteirinae (African flycatchers)
Habitat
Species occur in a wide range of habitats, including forest, woodland, savanna, grassland, edges of waterbodies and wetlands, pasture and other agricultural areas, and well-vegetated gardens and residential areas
Conservation status
The World Conservation Union (IUCN) lists 18 species of the Muscicapidae as being at risk, plus another 19 species as being Near Threatened
Distribution
Widespread in Eurasia and Africa with the greatest richness of species occurring in tropical and subtropical Africa, India, and Southeast Asia
Evolution and systematics
As treated here, the Old World flycatchers (family Muscicapidae) include 16 genera and about 135 species, including 9 genera and 109 species of the subfamily Muscicapinae (the typical Old World flycatchers) and 7 genera and 26 species of Platysteirinae (the African flycatchers). However, avian systematists are actively studying the composition of this diverse group of birds and related ones. There is ongoing controversy about the relationship of the Muscicapidae to other designated families of passerine birds, and whether to combine some of these with the Old World flycatchers. One classification joins the Muscicapidae with several related families, including the whistlers (Pachycephalidae), the fantails (Rhipiduridae), and the monarchs (Monarchidae). That group would include about 49 genera and 398 species. Some other systematic treatments would include even more families than this, including the Old World warblers (Silviidae) and thrushes (Turdidae). The tyrant flycatchers (Tyrannidae) are generally similar in appearance and behavior to the Muscicapidae, but this is because of convergent evolution as the families are not actually closely related.
Physical characteristics
The Old World flycatchers are a large and variable group consisting of about 135 species of songbirds. The subfamily Muscicapinae includes small- to medium-sized birds, with a body length generally ranging from 3–9 in (7.6–23 cm). The bill is relatively small, short, vertically (dorso-ventrally) flattened, and pointed. There are stout, well-developed bristles (known as rictal bristles) at the gape of the beak, which help increase the effectiveness at catching flying insects. The legs are relatively short and the feet small but well suited to perching. Coloration is highly variable among species, ranging from dull gray or brown to bright blue or vermilion and sometimes occurring in stark patterns. The sexes are colored alike in many species, but are dimorphic in others. Young birds are usually relatively subdued in coloration and spotted on the back and/or breast.
The subfamily Platysteirinae is also a varied group of small- to medium-sized songbirds. The bill is small, short, vertically flattened, and slightly hooked at the tip. There are well-developed rictal bristles at the gape of the beak. The tail is short and the legs and feet are variable in length and stoutness. An area of bare skin around the eye is variable in color among species. The sexes are colored differently, with the females being generally more subdued in pattern and hue. The plumage coloration of the male is mostly glossy black and white, while the female is usually more brown and sometimes light rufous on the belly. In both the Muscicapinae and Platysteirinae, relatively widespread species have been divided into various gepgraphically distinct subspecies and races that are distinct in elements of their size, plumage, behavior, and song.
Distribution
Species of typical Old World flycatchers are found widely through Eurasia and Africa. However, the greatest richness of species occurs in tropical Asia and Africa. Species of the Platysteirinae occur only in Africa.
Habitat
Species of Old World flycatchers occur in a wide range of habitats, including moist and dry forest, woodland, savanna, grassland, edges of waterbodies and wetlands, pasture and other agricultural areas, and well-vegetated gardens and residential areas.
Behavior
The northern species of Old World flycatchers are seasonal migrants, breeding in higher-latitude temperate and subarctic regions and wintering in subtropical and tropical areas. During their migration they travel at night and feed during the day. Species that breed in subtropical and tropical regions are resident there, although some of them may undertake seasonal movements between low- and high-altitude habitats. Most species are non-gregarious, occurring only singly, as pairs, or in small family groups consisting of parents and their immature progeny. The Old World flycatchers are strong and highly maneuverable fliers. Most species feed by sitting on a conspicuous perch until a flying insect is spotted, which is then pursued and caught in an aerial sally. Some species also glean prey from foliage, bark surfaces, or the ground. Some species have a well-developed song used to proclaim and defend their breeding territory, but in others it is relatively monotonous and weak. All species have calls used to communicate with individuals of their species, or to alert all nearby birds of the presence of a potential predator.
Feeding ecology and diet
Old World flycatchers use a variety of feeding tactics to prey on insects and other arthropods. Most species use an exposed vantage point, such as a high perch in a tree, to spot flying insects, which are then caught in an aerial pursuit. Some species also feed by gleaning prey from bark, branches, foliage, or spider webs, or by swooping down to feed on arthropods spotted on the ground. Some species repeatedly return to use a favorite perch for hunting, while others move about and frequently change their vantage point.
Reproductive biology
Old World flycatchers are highly territorial during their breeding season, defending a nesting area from others of their species. They do this by proclaiming their territory by frequent renditions of a song, and if this is not sufficient they will fight with intruders. They build a cup-shaped nest of grass, bark, and other plant fibers. The nest is generally placed in the fork of a branch, on a ledge of a bank, or in a cavity in a tree, stump, or cliff. They lay two to seven spotted or mottled eggs. In some species both parents participate in building the nest and incubating the eggs, while in others only the female does this. The incubation period ranges from about 12–22 days. Both parents care for the nestlings and fledglings. In some species, particularly of African flycatchers, immature birds of previous nestings will help their parents raise a new clutch of siblings.
Conservation status
The World Conservation Union IUCN lists 18 species of birds in the Muscicapidae as being at risk, plus another 19 species as being Near Threatened. However, the conservation status of many rare species in this group has not yet been studied. Further research will undoubtedly add additional species to the listings. Examples of listed species at-risk include the Nimba flycatcher (Melaenornis annamarulae) of the Ivory Coast and Guinea (Vulnerable), the streaky-breasted jungle-flycatcher (Rhinomyias addita) of China (Near Threatened), the white-browed jungle-flycatcher (Rhinomyias insignis) of the Philippines (Vulnerable), the Grand Comoro flycatcher (Humblotia flavirostris) of the Comoro Islands (Endangered), the Lampobattang flycatcher (Ficedula bonthaina) of Indonesia (Endangered), the red-tailed newtonia (Newtonia fanovanae) of Madagascar (Vulnerable), and the banded wattle-eye (Platysteira laticincta) of Cameroon (Endangered). All of these species are at-risk because of historical and ongoing habitat loss and fragmentation.
Significance to humans
Old World flycatchers are not of direct importance to humans, other than the indirect economic benefits of ecotourism and bird-watching focused on seeing birds in natural habitats. Moreover, it is crucial that research be undertaken to better understand the biology and habitat needs of the rare and endangered species of Old World flycatchers. In addition, their critical habitats must be identified and rigorously protected to prevent the extinction of these birds.
Species accounts
Spotted flycatcherAshy flycatcher
Cassin's flycatcher
Pied flycatcher
Collared flycatcher
Little slaty flycatcher
Brown-chested jungle-flycatcher
Fulvous-chested jungle-flycatcher
Grand Comoro flycatcher
Dull-blue flycatcher
Large niltava
Orange-breasted blue flycatcher
Large-billed blue-flycatcher
Fraser's forest-flycatcher
Abyssinian slaty flycatcher
Silverbird
Red-tailed newtonia
Shrike-flycatcher
Black-and-white flycatcher
Chestnut wattle-eye
Black-throated wattle-eye
Cape batis
Resources
Books:BirdLife International. Threatened Birds of the World. Barcelona and Cambridge: Lynx Edicions and BirdLife International, 2000.
Cramp, S., and C. M. Perrins, eds. Handbook of the Birds of Europe, the Middle East, and North Africa: The Birds of the Western Palaearctic: Old World Flycatchers to Shrikes. New York: Oxford Press, 1993.
Urban, E. K., C. H. Fry, and S. Keith. The Birds of Africa. Vol. 5. London: Academic Press.
Organizations:BirdLife International. Wellbrook Court, Girton Road, Cambridge, Cambridgeshire CB3 0NA United Kingdom. Phone: +44 1 223 277 318. Fax: +44-1-223-277-200. E-mail: birdlife@birdlife.org.uk Web site:
IUCN–The World Conservation Union. Rue Mauverney 28, Gland, 1196 Switzerland. Phone: +41-22-999-0001. Fax: +41-22-999-0025. E-mail: mail@hq.iucn.org Web site:
[Article by: Bill Freedman, PhD]




