Northern Black-throated Trogon (female), Osa Peninsula, Costa Rica

Casa Corcovado Jungle Lodge, Corcovado National Park, Osa Peninsula, Costa Rica (January 2016)

This bird alighted on a branch next to the trail but immediately took off once it realised our presence so there was no opportunity to get a better angle.

Status is classified as Least Concern. Formerly part of Black-throated Trogon but now considered a separate species Northern Black-throated Trogon by most authorities. Also known as Graceful Black-throated Trogon. For more information on this bird species see the following links:
Northern black-throated trogon (Trogon tenellus) / Wikipedia
Northern Black-throated Trogon Trogon tenellus / Bird Forum
BirdLife International / Black-throated Trogon Trogon rufus
Cornell Lab of Ornithology / Northern Black-throated Trogon Trogon tenellus

Recent research indicates that Black-throated Trogon comprises five species with distinct non-overlapping ranges (see Birdguides article):

Northern / Graceful Black-throated Trogon Trogon tenellus
Kerr's Black-throated Trogon Trogon cupreicauda
Amazonian Black-throated Trogon Trogon rufus
Southern Black-throated Trogon Trogon chrysochloros
Alagoas Black-throated Trogon Trogon muriciensis

Northern / Graceful Black-throated Trogon Trogon tenellus only occurs in Central America so would be the identity assigned to the bird in this image.

Shooting Time 8:53
Tv(Shutter Speed) 1/200
Av(Aperture Value) 2.8
Exposure Compensation +1
ISO Speed 16000