The bearded reedling (Panurus biarmicus) is a small, sexually dimorphic reed-bed passerine bird. It is frequently known as the bearded tit, due to some similarities to the long-tailed tit, or the bearded parrotbill. It is the only species in the family Panuridae. This is a small orange-brown bird, 16.5 cm (6.5 in) in length, with a long tail and an undulating flight. The bill is yellow-orange. The male has a grey head and black moustaches (not a beard); the lower tail coverts are also black. The female is generally paler, with no black moustache. Flocks often betray their presence in a reedbed by their characteristic "ping" call.