Venezuelan Bristle-Tyrant

Dark bluish thrush-like bird with a bright yellow bill. Found solely in the highlands of peninsular Malaysia. Lacks “spangled” look of Blue Whistling-Thrush. Found in hilly or montane forests, where it favors wet stony areas around streams or gullies. Call is a high sharp whistle, somewhat akin to brakes squealing.

A brightly-colored bird of dense evergreen forests, usually seen perched quietly on a mid-story perch. Varies in coloration throughout its range but always follows the same general color scheme: male has a dark red head and belly, a brown back, and barred black-and-white wings. Female has a more faded-red belly and a brown head. Both sexes, when seen from below, have a sharply contrasting and graduated black-and-white tail pattern. Sluggish and typically stationary and difficult to see; listen for its high-pitched gulping hoots. 

Large arboreal spinetail restricted to the upper Cotacajes river valley in NW Bolivia, where primarily known from the Inquisivi area in open woodland near treeline. From the similar Ash-browed Spinetail by whitish breast and pale nape. Song a very high, accelerating series of about 20 squeaks given over ~1.5 seconds that drops slightly in pitch over the course of the song.