31. Like the other woodcreepers , it belongs to the subfamily Dendrocolaptinae of the ovenbird family ( Furnariidae ). 32. Unlike most woodcreepers , it will make sallies to catch insects in flight or snatch them from leaves. 33. Generally brownish birds, the true woodcreepers maintain an upright vertical posture, supported by their stiff tail vanes. 34. However, woodcreepers often form part of the core group at the centre of flocks attending army ant swarms. 35. The xenops, which have usually been considered ovenbirds with a somewhat woodcreeper -like plumage, are problematic. 36. The wedge-billed woodcreeper is typically 14 15 cm long, and weighs 14 16.5 g. 37. It creeps along branches and up stems-but uses its tail for support less than a woodcreeper does. 38. Many species of birds mostly cuckoos, woodcreepers , tanagers, and antbirds feed near the swarms. 39. The northern barred woodcreeper ( " D . sanctithomae " ) was formerly included in this species. 40. The woodcreeper nests in cavities, both natural and bird-( e . g . woodpecker ) made.
