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The solitary nature of shoebills extends to their breeding habits. Nests typically occur at less than three nests per square kilometre, unlike herons, cormorants, pelicans, and storks, which predominantly nest in colonies. The breeding pair of shoebills vigorously defends a territory of 2 to 4 km 2 (0.77 to 1.54 sq mi) from conspecifics. In the ...
It is estimated that about 60% of the American bird population found North of the Mexican border nests in the boreal forest. About half of North America's breeding species (over 300) make their home there. The following is a list of the North American birds reliant on the boreal forests.
This list is based on one published by the National Park Service (NPS). [ 1 ] This list is presented in the taxonomic sequence of the Check-list of North and Middle American Birds , 7th edition through the 65th Supplement, published by the American Ornithological Society (AOS). [ 2 ]
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.
For species found in the 50 states, Puerto Rico, and the U.S. Virgin Islands, the taxonomic treatment (designation and sequence of orders, families and species) and nomenclature (common and scientific names) used in the list are those of the AOS, the recognized scientific authority on the taxonomy and nomenclature of North and Middle American birds.
This list of Oregon birds lists wild bird species found in the U.S. state of Oregon and accepted by the Oregon Bird Records Committee (OBRC). [1] As of August 2022, there are 547 species on the list. Of them, 164 are on the review list (see below).
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The white-winged dove of southwestern North America was known to nest in large colonies when foraging areas could support such numbers. In 1978, in Tamaulipas , Mexico, researchers counted 22 breeding colonies of white-winged doves with a collective population size of more than eight million birds.