Arabian Serin Crithagra rothschildi

Very plain gray-brown seedeater with a pale chin, blurry streaks running down the breast, and an olive-yellow rump, which is conspicuous in flight. Found in dry, rocky habitats in hilly and montane areas, which vary from dense woodland to areas with only scattered trees and bushes. Often in pairs. Has the odd habit of frequently flicking its tail. The song is a steady stream of musical whistles and trills. Similar to Yemen Serin, but has a weaker facial pattern and an olive rump.