European pied flycatcher

The European pied flycatcher (Ficedula hypoleuca) is a small passerine bird in the Old World flycatcher family. One of the four species of Western Palearctic black-and-white flycatchers, it hybridises to a limited extent with the collared flycatcher. It breeds in most of Europe and across the Western Palearctic. It is migratory, wintering mainly in tropical Africa. It usually builds its nests in holes on oak trees. This species practices polygyny, usually bigamy, with the male travelling large distances to acquire a second mate. The male will mate with the secondary female and then return to the primary female in order to help with aspects of child rearing, such as feeding.

The European pied flycatcher is mainly insectivorous, although its diet also includes other arthropods. This species commonly feeds on caterpillars, flies, spiders, ants, bees and similar prey.

The European pied flycatcher has a very large range and population size and so it is of least concern according to the International Union for Conservation of Nature (IUCN).

The European pied flycatcher is an Old World flycatcher, part of a family of insectivorous songbirds which typically feed by darting after insects. The Latin word ficedula means "small fig-eating bird". The term hypoleuca comes from two Greek roots, hupo, "below", and leukos, "white".

The species was described in Linnaeus's Fauna Svecica (1746), a work that was not binomial and that is therefore unavailable nomenclaturally. Later, in the tenth edition of his Systema Naturae and the next edition of Fauna Svecica (1761), Linnaeus confused this flycatcher with the Eurasian blackcap and the whinchat. To this point, the European pied flycatcher still lacked a proper valid binominal name. The species was finally named as Motacilla hypoleuca by the German naturalist Peter Simon Pallas in 1764. However, he described this species anonymously in the appendix of a sales catalogue of the collection of Adriaan Vroeg, popularly known simply as the "Adumbratiunculae" among ornithologists. The authorship of the Adumbratiunculae would later be attributed to Pallas. Given the initial anonymity of the publication and the inferred authorship by external evidence, the International Code of Zoological Nomenclature advocates that Pallas's name should appear enclosed in square brackets in the species' name. Thus, the correct form of the scientific name of the European pied flycatcher is Ficedula hypoleuca ([Pallas], 1764).

Ficedula hypoleuca currently has three accepted subspecies; the nominate F. h. hypoleuca ([Pallas], 1764), F. h. iberiae (Witherby, 1928), and F. h. tomensis (Johansen, 1916). The subspecies F. h. muscipeta (Bechstein, 1792) is currently considered synonymous with F. h. hypoleuca, but could represent an actual distinct subspecies. The name F. h. atricapilla (Linnaeus, 1766) is a junior subjective synonym of F. h. hypoleuca; and the name F. h. sibirica Khakhlov, 1915 is invalid, the correct form being F. h. tomensis (Johansen, 1916). The very similar Atlas pied flycatcher (Ficedula speculigera), of the mountains of north west Africa, was formerly classed as subspecies of the European pied flycatcher.

This is a 12–13.5 centimetres (4.7–5.3 in) long bird. The breeding male is mainly black above and white below, with a large white wing patch, white tail sides and a small forehead patch. The Iberian subspecies F. h. iberiae (known as Iberian pied flycatcher) has a larger forehead patch and a pale rump. Non-breeding males, females and juveniles have the black replaced by a pale brown, and may be very difficult to distinguish from other Ficedula flycatchers, particularly the collared flycatcher, with which this species hybridises to a limited extent.

The bill is black, and has the broad but pointed shape typical of aerial insectivores. As well as taking insects in flight, this species hunts caterpillars amongst the oak foliage, and will take berries. It is therefore a much earlier spring migrant than the more aerial spotted flycatcher, and its loud rhythmic and melodious song is characteristic of oak woods in spring. The contact and alarm call is a short whistle 'whit, whit, whit'.