Sabine's Puffback Dryoscopus sabini

A relatively large-billed shrike-like bird primarily found in lowland forest canopy. Male is white below and iridescent black above except for a white rump. The female is overall reddish brown, with more reddish wings and a grayish hood. Similar to several bicolored shrikelike birds in the region, but note Sabine’s Puffback’s large bill, striking sexual dimorphism, and unique song, which consists of a distinctive series of long whistles descending in pitch before arriving at a single repeated pitch, growing louder, and then ending suddenly. Songs can sometimes last several minutes, and are more reminiscent of some Yellow Longbill songs than of the songs of other puffbacks. Calls include typical puffback-like rattles and harsh calls.