Black-headed Trogon
Trogon melanocephalus
The black-headed trogon is 27 to 28 cm (11 to 11 in) long and weighs about 74 to 95 g (2.6 to 3.4 oz). Adults of both sexes have slate-black to black head, neck, and chest. A sky-blue ring of bare skin surrounds the dark eye. A thin white line separates the chest from the rest of their underparts, which are cadmium to chrome yellow that becomes lighter at the vent area. The two inner pairs of tail feathers are metallic bronze breen to bluish green with black tips. The next pair are all black and the outermost three pairs are black with wide white tips. Voice: The black-headed trogon is vocal and often detected by its calls. The most common call is " a loud series of 15-20 accelerating clucks or 'cuck' notes". It is sometimes sung by a pair as a duet and also by small groups of individuals. The species' alarm call is "a single low 'cuck'".
ID text from Wikipedia, CC BY-SA 4.0
Collared Trogon
Trogon collaris
Trogons have distinctive male and female plumages, with soft, often colorful, feathers. The collared trogon is about 25 to 29 cm (9.8 to 11.4 in) long and weigh about 41 to 64 g (1.4 to 2.3 oz). Both sexes have a black face and throat. The male's crown, nape, back, and rump are bright metallic green. The folded wing shows black and white vermiculation. The breast is also metallic green with a white band separating it from the bright red belly and vent. The upperside of the tail is green with a black tip and the underside is barred black and white. Voice: The collared trogon's song varies geographically. The Mexican and Central American populations sing "a plaintive 2-3 noted kyow'-kyow or caow' caow, and a faster kyow kyow-kyow". South American songs are described as "a series of mellow whistled notes, usually with a stuttered introductory note: whi'whi whew-whew-whew." Calls include "a prolonged charr" and a "snorting chur-r-r-r".
ID text from Wikipedia, CC BY-SA 4.0
Where you might meet both
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