Adults are mostly vegetarian, feeding heavily on needles of pines, spruce, other conifers. Diet may be almost entirely conifer needles in winter. At other times also eats fresh green shoots and leaves of other plants, berries, flowers, insects, snails, and fungi. Very young birds may eat more insects. Both females and males defend individual territories in breeding season. Male displays by drumming with wings, making deep thumping sound audible only at close range.
Males of Franklin's race also make loud wing-clap in flight. In courtship, male raises and spreads tail, fluffs out feathers, postures in front of female. One male may mate with several females. Nest site is on ground under dense cover. Nest built by female is shallow depression, lined with a few needles and leaves. Learn more about these drawings. Most individuals are permanent residents, but some move short distances less than ten miles between summer and winter territories.
This "migration" is accomplished on foot. Females more likely to move than males, and tend to go farther. Choose a temperature scenario below to see which threats will affect this species as warming increases. The same climate change-driven threats that put birds at risk will affect other wildlife and people, too. Here's where I failed and the best players cleaned up during 's inaugural fantasy birding season. Young birds eat mostly insects.
One male mates with several females, and the females provide all the parental care. The nest is built on the ground, a shallow depression under dense cover, lined with a few needles and leaves. The female lays and incubates eggs. The young leave the nest shortly after hatching and find their own food, but the female continues to tend the young, keeping them warm at night and in cool weather.
Most Spruce Grouse do not migrate, but some do move short distances fewer than 10 miles between separate summer and winter ranges. They migrate on foot, and females are more likely to migrate, and go farther, than males. Local populations fluctuate in numbers and may have declined in the southern portions of their range. These fluctuations are primarily in response to forest maturation, with predation pressure also having some influence. Spruce Grouse are adapted to forest fires, which create small patches of habitat at various ages.
Clear cuts can mimic this effect, if they are small and interspersed with multiple-aged stands. Large clear cuts and even aged stands can have a significant negative impact on the population. Spruce Grouse are uncommon in northern Washington east of the Cascade crest. The nest is usually built under low lying branches of a spruce tree. The chicks hatch after about 3 weeks and fledge when they are 10 days old.
The spruce grouse is also known as the "Fool Hen" because it is so tame you can walk right up to it and pick it up! Range The spruce grouse is found in most parts of Canada, except for the extreme north. Habitat The spruce grouse lives in coniferous forests, especially those with spruce and pine trees. Diet Most of the spruce grouse's diet is made up of the needles and buds of conifer trees like jack pine, juniper, spruce, larch, and lodge-pole pine. Surprise Me.
Previous Siberian Grouse. Next Black-billed Capercaillie. Michael A. Schroeder, Erik J. Blomberg, David A. Boag, Peter Pyle, and Michael A. Patten Version: 1.
0コメント