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  • noun

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very small North American and South American warblers

References in periodicals archive ?
It is also true that islands are smaller for some species, such as the California Gnatcatcher which needs 20 acres (49ha)/ pair (Atwood, 1992) than they are for horned Lizards where a single acre may contain 320 horned lizards (7-48 ha), or more; (Gerson, 2011; Jennings, 1987; Hager, 1992; McGurty, personal communications).
Foraging ecology of the California gnatcatcher deduced from fecal samples.
California Gnatcatcher Under the Endangered Species Act, 60 Fed.
The only endangered species that Edelman expects to be affected by the fires is the California gnatcatcher, a bird that has caused developers in San Diego fits because its sensitive habitats cannot be disturbed.
In 1992, environmental extremists used the ESA to stop controlled bums of dangerous brush build-ups, claiming the preventive actions would endanger protected gnatcatchers and rats.
Roosting California gnatcatchers lightly crown the main gate (see drawing below).
Yet the first analysis of mitochondrial DNA finds nothing distinctive to separate it from the other gnatcatchers in Baja California, reports Robert Zink of the J.
The thickets at Ding Darling are almost always alive with smaller birds, including yellow-rumped warblers, mockingbirds and blue- gray gnatcatchers.
I flush blue-gray gnatcatchers, yellow-rumped warblers, and both golden- and white-crowned sparrows on my way to the beach, where a score of sanderlings chase the waves like sprinters.
25-cm mesh size was small enough to prevent access by the smallest insectivorous birds (hummingbirds [Trochilidae] and gnatcatchers [Polioptila sp.
Common birds include turkey vultures, red-tailed hawks, Gambel's quail, desert doves, roadrunners, poor-wills, Costa's hummingbirds, gilded flickers, verdins, cactus wrens, black-tailed gnatcatchers, brilliant red cardinals and hooded orioles with their bright yellow heads.
These parcels are home to the last 2,500 nesting pairs of gnatcatchers, as well as to 50 to 100 other rare species of plants and animals, many of which are also on the verge of extinction.
On the edge of the project several pairs of California gnatcatchers have been observed.
Nevertheless among the remaining four passerines, we recorded over 45% of nests parasitized in Blue-gray Gnatcatchers, Painted Buntings, and White-eyed Vireos and <5% in the Lark Sparrow (Table 1).
Blue-gray gnatcatchers are one of the smallest hosts of the brown-headed cowbird (Root, 1969; Friedmann et al.