They mainly occur as breeding species, as the common name implies, in Europe, Asia and, to a lesser extent, Africa. Most are of generally undistinguished appearance, but many have distinctive songs. Order: PasseriformesFamily: Muscicapidae  Old World flycatchers are a large group of small passerine birds native to the Old World. They are mainly small arboreal insectivores. The appearance of these birds is highly varied, but they mostly have weak songs and harsh calls. Order: PasseriformesFamily: Platysteiridae  The wattle-eyes, or puffback flycatchers, are small stout passerine birds of the African tropics. They get their name from the brightly coloured fleshy eye decorations found in most species in this group. There are 2 species which have been recorded in Guinea-Bissau. Order: PasseriformesFamily: Monarchidae  The monarch flycatchers are small to medium-sized insectivorous passerines which hunt by flycatching. There are 99 species worldwide and 2 species which occur in Guinea-Bissau. Order: PasseriformesFamily: Pellorneidae   Order: PasseriformesFamily: Leiothrichidae   Order: PasseriformesFamily: Paridae  The Paridae are mainly small stocky woodland species with short stout bills. Some have crests. They are adaptable birds, with a mixed diet including seeds and insects. There are 59 species worldwide and 1 species which occurs in Guinea-Bissau. Order: PasseriformesFamily: Certhiidae  Treecreepers are small woodland birds, brown above and white below. They have thin pointed down-curved bills, which they use to extricate insects from bark. They have stiff tail feathers, like woodpeckers, which they use to support themselves on vertical trees. Order: PasseriformesFamily: Remizidae  The penduline tits are a group of small passerine birds related to the true tits. They are insectivores. There are 13 species worldwide and 1 species which occurs in Guinea-Bissau. Order: PasseriformesFamily: Nectariniidae  The sunbirds and spiderhunters are very small passerine birds which feed largely on nectar, although they will also take insects, especially when feeding young. Flight is fast and direct on their short wings. Most species can take nectar by hovering like a hummingbird, but usually perch to feed.