Long-tailed Potoo

The long-tailed potoo (Nyctibius aethereus) is a species of bird in the family Nyctibiidae. It is found in every mainland South American country except Chile and Uruguay. == Taxonomy and systematics == The long-tailed potoo has three subspecies, the nominate Nyctibius aethereus aethereus, N. a. chocoensis, and N. a. longicaudatus. Several authors maintain that longicaudatus should be treated as a separate species with chocoensis as a subspecies of it. == Description == The long-tailed potoo is 42 to 58 cm (17 to 23 in) long and weighs 280 to 447 g (9.9 to 15.8 oz). The nominate subspecies' upperparts are tawny brown. The crown and nape have buff spots and speckles and blackish brown streaks. The mantle, back, and rump are mottled brown and buff and have blackish brown streaks. The tail is graduated and overall brown, with tawny buff barring and brown streaks or vermiculation. Much of the face is tawny and it has a buffish "moustache". The wings are generally brown with broad pale tawny bars. The chin and throat are grayish buff. The breast and flanks are brown with buff speckles, blackish brown streaks, and bold buff and blackish brown spots. The lower belly is buff with…