Haribon birdwatching manual.

Tag-araw ng mga ibong hilaga Summer of the north birds by Evasco, Eugene Y.

Birdwatching in the Philippines by Libosada, Carlos M.

Birdwatching in the Philippines by Libosada, Carlos M.

Birds of Adlay and forest watershed in Surigao del Sur and notes on the diet of select species by Carig, Hadassah Faith C.

Evolutionary history of Philippine birds by Jones, Andrew Wayne

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Key conservation sites in the Philippines a Haribon Foundation & birdlife international directory of important bird areas by Mallari, Neil Aldrin

Key conservation sites in the Philippines a Haribon Foundation & Birdlife International directory of important bird areas by Mallari, Neil Aldrin D.

Key conservation sites in the Philippines by Mallari, Neil Aldrin D.

A photographic guide to birds of the Philippines by Fisher, Tim