when do wood thrushes fly when they are migrating
in the winter at night
title: American woodcock text: arrive on the wintering range by mid-December. The birds head north again in February. Most have returned to the northern breeding range by mid-March to mid-April. Migrating birds' arrival at and departure from the breeding range is highly irregular. In Ohio, for example, the earliest birds are seen in February, but the bulk of the population does not arrive until March and April. Birds start to leave for winter by September, but some remain until mid-November. In Spring, males occupy individual singing grounds, openings near brushy cover from which they call and perform display flights at dawn and dusk, and title: Wood thrush text: migrates to southern Mexico through to Panama in Central America in the winter, mostly in the lowlands along the Atlantic and Pacific coasts. It generally arrives on the U.S. Gulf Coast during the first week of April. Fall migration usually begins in mid-August and continues through mid-September. Migration takes place at night, allowing them to find their direction from the stars and orient themselves by detecting the Earth's magnetic field. The wood thrush prefers deciduous and mixed forests for breeding. It prefers late-successional, upland mesic forests with a moderately-dense shrub layer. Robert I. Bertin (1977) found that this thrush favors title: Eastern wood pewee text: flight, sometimes hovering to pick it from vegetation. Eastern wood pewees arrive relatively late on breeding grounds (e.g., 18 May to 5 June in southern Ontario). They are rarely seen on their breeding grounds before the last days of April further south. They migrate south at a more usual time, leaving sometimes in late August but most often in September. Migration times have stayed the same in the last 100 years. They migrate quickly for most of the journey, dispersing and moving at a slower speed when approaching breeding or wintering range. For example, in the Cayman Islands which are title: American woodcock text: speed ever recorded for a bird, 5 miles per hour (8 kilometers per hour), was recorded for this species. It is believed that woodcock orient visually using major physiographic features such as coastlines and broad river valleys. Both the autumn and spring migrations are leisurely compared with the swift, direct migrations of many passerine birds. In the North, woodcock begin to shift southward before ice and snow seal off their ground-based food supply. Cold fronts may prompt heavy southerly flights in autumn. Most woodcock start to migrate in October, with the major push from mid-October to early November. Most individuals title: Wood thrush text: insects to fruits with high lipid levels. In the summer, low fruit consumption and lipid reserves require the bird to feed on insects continuously in order to meet its metabolic needs. The wood thrush forages mainly on the forest floor, flipping leaves over with its bills to reveal insects. It can be observed hopping around in leaf litter and on semi-bare ground under the forest canopy. Fruits are swallowed whole. Eggs and chicks are vulnerable to chipmunks, raccoons, blue jays, American crows, black rat snakes, brown-headed cowbirds, common grackles, southern flying squirrels, gray squirrels, least weasels, white-footed mice, domestic cats,