The quail-thrushes and jewel babblers are medium-sized songbirds, 17–28 cm in length.They have strong legs and bills
. Males and females often differ in plumage
markings. The quail-thrushes are largely brown above, the colour varying to provide camouflage
against the soil, but are more boldly marked with black and white below. Jewel-babblers usually have extensive blue in their plumage. Most species have loud, distinctive songs
Whipbirds and wedgebills are 19–31 cm long. They are mainly olive-green or brown in colour and have a crest.
From Wikipedia, the free encyclopedia http://en.wikipedia.org/wiki/Psophodidae