The Acadian flycatcher (Empidonax virescens ) is a small insect-eating bird of the tyrant flycatcher family.
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DiurnalDiurnal animals are active during the daytime, with a period of sleeping or other inactivity at night. The timing of activity by an animal depends ...
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CarnivoreA carnivore meaning 'meat eater' is an organism that derives its energy and nutrient requirements from a diet consisting mainly or exclusively of a...
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InsectivoresAn insectivore is a carnivorous plant or animal that eats insects. An alternative term is entomophage, which also refers to the human practice of e...
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ArborealArboreal locomotion is the locomotion of animals in trees. In habitats in which trees are present, animals have evolved to move in them. Some anima...
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TerrestrialTerrestrial animals are animals that live predominantly or entirely on land (e.g., cats, ants, snails), as compared with aquatic animals, which liv...
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AltricialAltricial animals are those species whose newly hatched or born young are relatively immobile. They lack hair or down, are not able to obtain food ...
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TerritorialA territory is a sociographical area that which an animal consistently defends against the conspecific competition (or, occasionally, against anima...
Oviparous animals are female animals that lay their eggs, with little or no other embryonic development within the mother. This is the reproductive...
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MonogamyMonogamy is a form of relationship in which both the male and the female has only one partner. This pair may cohabitate in an area or territory for...
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MigratingAnimal migration is the relatively long-distance movement of individual animals, usually on a seasonal basis. It is the most common form of migrati...
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starts withThe Acadian flycatcher is a small insect-eating bird found in North America. Adults have olive upperparts, darker on the wings and tail, with whitish underparts; they have a white eye ring, white wing bars, and a wide bill. The breast is washed with olive. The upper part of the bill is dark; the lower part is yellowish. A unique two-note song described as "ka-zeep", and their location in the preferred habitat, are two features that help to identify these birds.
Acadian flycatchers breed across the eastern United States and southwestern Ontario. These birds migrate through eastern Mexico and the Caribbean to southern Central America and the very northwest of South America in Colombia, western Venezuela, and Ecuador. Acadian flycatchers inhabit deciduous forests, often near water bodies such as streams, ravines, or swamps.
Acadian flycatchers are excellent fliers; they are extremely maneuverable, can hover, and can even fly backward. They are active during the day and spend their time feeding, perching, preening and bathing. They bathe by diving into the water and then return to their perch to preen. When hunting insects Acadian flycatchers usually use two main techniques; they may use a method called hawking when they wait on a perch in the middle of a tree and fly out to catch insects in flight or may use a method called gleaning when they pick insects from foliage while hovering. These small birds usually become social during the breeding season forming pairs and nesting near other Acadian flycatchers. To communicate with each other they use a soft peet call. Males usually sing explosive "peet-sah" songs to mark their territory.
Acadian flycatchers are carnivores (insectivores) and feed mainly on insects such as flies, mosquitoes, insect larvae, flying ants, small beetles, and some spiders. They will also eat some berries and seeds occasionally.
Acadian flycatchers are monogamous and form pairs that stay together for many years. However, some males may be polygynous and may mate with several females. The breeding season occurs between April and August. Females usually choose nesting sites and build nests. They make a loose cup nest in a horizontal fork in a tree or shrub. Females lay 2-4 eggs and can have 1-2 broods each season. Eggs are incubated within 13 to 14 days by the female. Chicks are born helpless and both parents usually take care of them 13 to 15 days until they fledge. The young will remain with their parents for another 12 days until they reach independence. Acadian flycatchers become reproductively mature and are ready to breed for the first time at 1 year age.
The numbers of Acadian flycatchers have declined in the southern parts of their range due to habitat fragmentation and deforestation, especially in agricultural areas.
According to the What Bird resource, the total population size of the Acadian flycatcher is around 5 million individuals. According to the All About Birds resource, the global population of this species is 5.2 million individuals. According to the Ontario resource, the Acadian flycatcher population in Ontario is 25 to 75 breeding pairs. Overall, this species is classified as Least Concern (LC) on the IUCN Red List and its numbers today are stable.
Social animals are those animals that interact highly with other animals, usually of their own species (conspecifics), to the point of having a rec...