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eBird is an online database of bird observations providing scientists, researchers and amateur naturalists with real-time data about bird distribution and abundance.Originally restricted to sightings from the Western Hemisphere, the project expanded to include New Zealand in 2008, [1] and again expanded to cover the whole world in June 2010.
A significant portion of the audiovisual content available in Birds of the World is collected through citizen science data collection as provided by eBird, [3] but content is also included from the Macaulay Library, as it was gathered in the Internet Bird Collection by Josep del Hoyo, the initial founder of Lynx Edicions, and his colleagues in ...
These birds have mates but the mates don't stay together all year round. The same pair tends to reunite for mating season [6] and both parents take a role in feeding. [5] During mating, male Brewer's blackbirds will puff up their feathers while simultaneously spreading out their wings and tail to look as large as possible.
The vocalizations of the alder flycatcher are very useful for its identification in the field. The song is a distinct "fee-bee-o"; birds have been observed to throw their heads back and shake their tails while singing. [8] There are a variety of calls generated by E. alnorum, the most common of which is a "pit" sound produced when foraging ...
The color of their feathers depends on the environment surrounding the bird. [27] Currently, there is no direct correlation between the birds' colors and mate choice. Rather, it plays a bigger role in territory. [28] The northern flicker may also point its bill forward towards a competitor for territorial reasons. [25] Juvenile northern ...
These birds mainly forage on the ground in leaf litter, but also in shrubs and trees. They mainly eat arthropods and berries . In the winter months, Cymbopetalum mayanum ( Annonaceae ) and Trophis racemosa ( Moraceae ) bear fruit well liked by this species, and such trees can be planted to attract the gray catbird into parks and gardens.
The taxonomic treatment [3] (designation and sequence of orders, families and species) and nomenclature (common and scientific names) used in the accompanying bird lists adheres to the conventions of the AOS's (2019) Check-list of North American Birds, the recognized scientific authority on the taxonomy and nomenclature of North America birds.
Like some other birds, the sunbittern has powder down. The sunbittern has a long and pointed bill that is black above, and a short hallux as in shorebirds and rails. In the South American subspecies found in lowlands east of the Andes , the upperparts are mainly brown, and the legs and lower mandible are orange-yellow.