The Brown-throated Sunbird is a relatively large (14 cm), heavy sunbird with a thick bill.
The male has a brown face, pinkish-brown throat and a blue-green crown and back. 
The female is olive-green above and yellowish below and can be distinguished from other sunbirds by her robust size and the broken pale yellow eyerings. 
It is found in a wide range of semi-open habitats in south-east Asia.

1st photo: A male. Bangkok, Thailand, 11 December 2009
2nd & 3rd photo: A female. Khao Sok National Park area, Surat Thani Province, Thailand, 25 January 2013