Language English Laurentian Maple Forest Photo: Biodôme Photo: Biodôme Photo: Biodôme Photo: Biodôme Photo: Biodôme OngletsDescriptionDistinguishing features The common yellowthroat is very widespread, and easy to identify. The male's breeding plumage is olive green on top, with a yellow throat and a distinctive black mask. The female is similar, but duller, with no mask. Reproduction The nest is built by the female, on or close to the ground, and camouflaged in dense shrubbery or high grass. The female lays three to five eggs, and incubates them alone for 11 to 13 days. The young leave the nest after 8 to 10 days. Diet They eat butterflies, including gypsy moths, caterpillars, grasshoppers, leafhoppers, aphids and spiders. They capture their prey on the ground and on the leaves of low bushes. Predators The adults' enemies are diurnal and nocturnal raptors. Various mammals, including foxes, racoons and skunks, may eat the eggs and young. Habitat These birds breed throughout Canada, the United States and Mexico. They prefer moist surroundings, but can often be found in dryer areas. They frequent swamps, old fields, roadsides, pastures, woods, lakes and streams, wherever there is bushy vegetation. Ecology, behaviour They are very active birds, displaying wrenlike energy, posturing as soon as an intruder enters their domain. Their distinct song, witchery witchery witchery, is easy to recognize. The males sometimes give voice while flying upward, probably to warn females of approaching predators and to distract the enemy. This bird winters in the southern United States, in Central America and the Antilles. French nameParuline masquée Scientific nameGeothlypis trichasPhylumChordataClassBirdsOrderPasseriformesFamilyEmberizidaeSizeLength: 12 to 14 cmWeightApproximately 10 gLife spanRecord: 9 years, 11 monthsStatusLeast Concern (IUCN). Abundant species.