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Costa Rica's birds range in size from the scintillant hummingbird, at 2.2 grams and 6 cm (2.4 in), to the huge jabiru, at 6.5 kg (14.3 lb) and 150 cm (60 in) (the American white pelican is heavier, but is an accidental species).
The clay-colored thrush is the national bird of Costa Rica. Although Costa Rica is a small country, it is in the bird-rich neotropical region and has a huge number of species for its area. The official bird list published by the Costa Rican Rare Birds and Records Committee of the Asociación Ornitológica de Costa Rica (AOCR) contained 948 ...
In Costa Rica. The azure-hooded jay ranges in length from 11 to 12 inches (28 to 30 cm), [7] and it tends to weigh 3.52 ounces (100 g). [8] Its large size and frame help the bird manage the large amount of flying it does. [8]
in Guanacaste province, Costa Rica in El Salvador. The adult rufous-backed wren is 17 cm (6.7 in) long and weighs 29 to 42 g (1.0 to 1.5 oz). There is some variation among the subspecies but generally they have a black crown and eyestripe separated by a white supercilium, a rufous nape, and cinnamon to chestnut upperparts streaked with black and white, especially on the rump.
At close range, the vocalization of many in Costa Rica is heard as a complex three-part song, the "bonk" giving the bird its name. This hollow, wooden "bonk" is thought to be among the loudest bird calls on Earth, audible to humans from over 0.5 mi (0.80 km) away.
Cocoa_Woodcreeper at La Selva Lodge - Costa Rica - flash photo The cocoa woodcreeper is 21 to 25.5 cm (8.3 to 10 in) long and weighs 43 to 58 g (1.5 to 2.0 oz). [ 5 ] [ 6 ] It is a medium-sized member of genus Xiphorhynchus , with a long, fairly heavy, slightly decurved bill.
The level of divergence is the highest of any genus of birds, being more typical of the divergence between genera or even families. The northern potoo was for a long time considered to be the same species as the common potoo , but the two species have now been separated on the basis of their calls .
The tropical screech owl is "the most common and widespread screech-owl of the neotropicis." It is found from Costa Rica and Panama south and throughout South America (including Trinidad and Tobago), almost entirely east of the Andes, but not in the far south. The subspecies are distributed thus: [4]