Coppery-headed Emerald
Encyclopedia
The Coppery-headed Emerald (Elvira cupreiceps) is a type of hummingbird
Hummingbird
Hummingbirds are birds that comprise the family Trochilidae. They are among the smallest of birds, most species measuring in the 7.5–13 cm range. Indeed, the smallest extant bird species is a hummingbird, the 5-cm Bee Hummingbird. They can hover in mid-air by rapidly flapping their wings...

. It is endemic
Endemic (ecology)
Endemism is the ecological state of being unique to a defined geographic location, such as an island, nation or other defined zone, or habitat type; organisms that are indigenous to a place are not endemic to it if they are also found elsewhere. For example, all species of lemur are endemic to the...

 to Costa Rica
Costa Rica
Costa Rica , officially the Republic of Costa Rica is a multilingual, multiethnic and multicultural country in Central America, bordered by Nicaragua to the north, Panama to the southeast, the Pacific Ocean to the west and the Caribbean Sea to the east....

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The noticeably decurved bill sets it apart from similar White-tailed Emerald (no range overlap).
Male has distinctive coppery crown and rump with a whole green belly and white vent. The female has a white belly and a narrow black subterminal band on white outer rectrices of the tail. It measures 8 centimeters (3 inches).

It is a Costa Rican endemic, fairly common at middle elevations on Caribbean Slope, south to Reventazon River; from 600 to 1,500 meters. Also it is fairly common on Pacific slope of Guanacaste and Tilaran Cordilleras; from 1,200 to 1,500 meters.

It feeds at all levels in mature wet montane forest and forest edges.

Males form small leks at middle levels of forest edges.


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