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[7] [12] [13] The gray catbird is a migratory species. Spring migration ranges from March to May, and in the fall ranges from late August to November. [14] The catbird tends to avoid dense, unbroken woodlands, and does not inhabit coniferous, pine woodland. Catbirds prefer a dense vegetative substrate, especially if thorny vegetation is present.
Of the 394 species, 108 are classed as accidental and six were introduced to North America. Four are extinct and three have been extirpated. An additional nine species are hypothetical as defined below. Birds that are considered probable escapees, although they may have been sighted flying free, are not included.
Formerly the bird was rare, in part due to pesticide contamination (including DDT), with just nine nests in the state as of 1974 and increasing to 162 (with 315 fledglings) by 1999; their range has expanded westward along the coast over time and up the Connecticut and Quinnipiac rivers; their nests stay intact through the winter, when the birds ...
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.
Tyrant flycatchers are Passerine birds which occur throughout North and South America. They superficially resemble the Old World flycatchers, but are more robust and have stronger bills. They do not have the sophisticated vocal capabilities of the songbirds. Most, but not all, are rather plain. As the name implies, most are insectivorous.
Australasian catbirds are the genera Ailuroedus and the monotypic Scenopooetes. They belong to the bowerbird family (Ptilonorhynchidae) of the basal songbirds: Ochre-breasted catbird ( Ailuroedus stonii )
The California condor is one of North America's most endangered birds. A comprehensive listing of all the bird species confirmed in the United States follows. It includes species from all 50 states and the District of Columbia as of July 2022. Species confirmed in other U.S. territories are also included with other "as of" dates.
Of them, 75 are classed as accidental, 11 are classed as hypothetical, and five have been introduced to North America. In addition to the 483, two species are extinct and one has been extirpated and are longer included in the official list. Another is not on the official list because it was not identified at the species level.