طرغونيات

Trogons
White-tailed Trogon, Trogon viridis
التصنيف العلمي
مملكة:	الحيوانية
Phylum:	الحبليات
Class:	الطيور
Infraclass:	حديثات الفك
Order:	أشباه الطرغونيات AOU, 1886
Family:	طرغونيات Lesson, 1828
Genera
Apaloderma Euptilotis Harpactes Apalharpactes Pharomachrus Priotelus Trogon

The trogons and quetzals are birds in the order Trogoniformes which contains only one family, the Trogonidae. The family contains 39 species in eight genera. The fossil record of the trogons dates back 49 million years to the mid-Eocene. They might constitute a member of the basal radiation of the order Coraciiformes. The word "trogon" is Greek for "nibbling" and refers to the fact that these birds gnaw holes in trees to make their nests.

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 تطور والتصنيف

Skull of a trogon showing the presence of a basipterygoid process (bpg.p.) and a schizognathous palate

The tendons on the showing the arrangement with a reversed second toe. The plantar tendon on the front (flexor perforans digitorum) splits into two and enters the front toes while the hind plantar (flexor longus hallucis) splits and enters the hind toes.

 التوزيع والسكن

The Cuban Trogon is one of two species restricted to the islands of the Caribbean

 Morphology and flight

A pair of Scarlet-rumped Trogons, showing sexual dimorphism in the plumage. The female is on the left, male on the right.

 السلوك

 تربية

A male Resplendent Quetzal entering its nest.

 قائمة الأنواع

Harpactes     Apaloderma       Trogon       Priotelus     Quetzals   Euptilotis     Pharomachrus      المصادر  وصلات خارجية	Trogonidae ]]. Trogon videos on the Internet Bird Collection Tree of Life: Trogonidae