Males have wide antlers that can measure up to 2 meters in width, from tip to tip. Moose shed their antlers in the fall and early winter following the end of the breeding season. Every year male moose grow a new set of antlers that is larger than the previous year's "rack.
Where they live: Moose are found throughout northern North America. They are generally found in forests near streams, ponds or lakes where there are willows. Moose, in Washington, are mostly limited to the northeast corner and the northeast Cascades, but are expanding their range.
Click the range map to learn more about the distribution of Moose in Washington. What they eat: Moose are herbivores. They eat twigs, bark, roots and the shoots of woody plants. They prefer to eat willows and aspens. Both male and female Barn Swallows sing both individually and in groups in a wide variety of twitters, warbles, whirrs and chirps. They give a loud call when threatened, to which other swallows will react, leaving their nests to defend the area. Freshwater turtles are reptiles, like snakes, crocodilians and lizards.
They also have a scaly skin, enabling them, as opposed to most amphibians, to live outside of water. Also like many reptile species, turtles lay eggs they are oviparous. But what makes them different to other reptiles is that turtles have a shell.
This shell, composed of a carapace in the back and a plastron on the belly, is made of bony plates. These bones are covered by horny scutes made of keratin like human fingernails or leathery skin, depending on the species. All Canadian freshwater turtles can retreat in their shells and hide their entire body except the Common Snapping Turtle Chelydra serpentina. This shell is considered perhaps the most efficient form of armour in the animal kingdom, as adult turtles are very likely to survive from one year to the next.
Indeed, turtles have an impressively long life for such small animals. Most other species can live for more than 20 years. There are about species of turtles throughout the world, inhabiting a great variety of terrestrial, freshwater and marine ecosystems on every continent except Antarctica and its waters.
In Canada, eight native species of freshwater turtles and four species of marine turtles can be observed. Another species, the Pacific Pond Turtle Clemmys marmorata , is now Extirpated, having disappeared from its Canadian range. Also, the Eastern Box Turtle Terrapene carolina has either such a small population that it is nearly Extirpated, or the few individuals found in Canada are actually pets released in the wild.
More research is needed to know if these turtles are still native individuals. Finally, the Red-eared Slider Trachemys scripta elegans , has been introduced to Canada as released pets and, thus, is not a native species. Females tend to be slightly larger than males but are otherwise identical.
As its name implies, it is pale tan to reddish or dark brown with a slightly paler belly, and ears and wings that are dark brown to black. Contrary to popular belief, Little Brown Bats, like all other bats, are not blind. Still, since they are nocturnal and must navigate in the darkness, they are one of the few terrestrial mammals that use echolocation to gather information on their surroundings and where prey are situated. The echolocation calls they make, similar to clicking noises, bounce off objects and this echo is processed by the bat to get the information they need.
These noises are at a very high frequency, and so cannot be heard by humans. Narwhals Monodon monoceros are considered medium-sized odontocetes, or toothed whales the largest being the sperm whale, and the smallest, the harbour porpoise , being of a similar size to the beluga, its close relative.
Males can grow up to 6. Females tend to be smaller, with an average size of 4 m and a maximum size of 5. A newborn calf is about 1. Like belugas, they have a small head, a stocky body and short, round flippers. Narwhals lack a dorsal fin on their backs, but they do have a dorsal ridge about 5 cm high that covers about half their backs.
This ridge can be used by researchers to differentiate one narwhal from another. It is thought that the absence of dorsal fin actually helps the narwhal navigate among sea ice. Unlike other cetaceans —the order which comprises all whales—, narwhals have convex tail flukes, or tail fins. These whales have a mottled black and white, grey or brownish back, but the rest of the body mainly its underside is white. Newborn narwhal calves are pale grey to light brownish, developing the adult darker colouring at about 4 years old.
As they grow older, they will progressively become paler again. Some may live up to years, but most probably live to be 60 years of age. Although the second, smaller incisor tooth often remains embedded in the skull, it rarely but on occasion develops into a second tusk.
Tusks typically grow only on males, but a few females have also been observed with short tusks. The function of the tusk remains a mystery, but several hypotheses have been proposed.
Many experts believe that it is a secondary sexual character, similar to deer antlers. Thus, the length of the tusk may indicate social rank through dominance hierarchies and assist in competition for access to females.
Indeed, there are indications that the tusks are used by male narwhals for fighting each other or perhaps other species, like the beluga or killer whale. A high quantity of tubules and nerve endings in the pulp —the soft tissue inside teeth — of the tusk have at least one scientist thinking that it could be a highly sensitive sensory organ, able to detect subtle changes in temperature, salinity or pressure.
Narwhals have not been observed using their tusk to break sea ice, despite popular belief. Narwhals do occasionally break the tip of their tusk though which can never be repaired. This is more often seen in old animals and gives more evidence that the tusk might be used for sexual competition. Of the species of woodpeckers worldwide, 13 are found in Canada. The smallest and perhaps most familiar species in Canada is the Downy Woodpecker Picoides pubescens.
It is also the most common woodpecker in eastern North America. This woodpecker is black and white with a broad white stripe down the back from the shoulders to the rump. The crown of the head is black; the cheeks and neck are adorned with black and white lines. Male and female Downy Woodpeckers are about the same size, weighing from 21 to 28 g.
The male has a small scarlet patch, like a red pompom, at the back of the crown. The Downy Woodpecker looks much like the larger Hairy Woodpecker Picoides villosus , but there are some differences between them. The Downy is about 6 cm smaller than the Hairy, measuring only 15 to 18 cm from the tip of its bill to the tip of its tail.
Woodpeckers are a family of birds sharing several characteristics that separate them from other avian families. Most of the special features of their anatomy are associated with the ability to dig holes in wood. The straight, chisel-shaped bill is formed of strong bone overlaid with a hard covering and is quite broad at the nostrils in order to spread the force of pecking.
A covering of feathers over the nostrils keeps out pieces of wood and wood powder. The pelvic bones are wide, allowing for attachment of muscles strong enough to move and hold the tail, which is important for climbing.
Another special anatomical trait of woodpeckers is the long, barbed tongue that searches crevices and cracks for food. The salivary glands produce a sticky, glue-like substance that coats the tongue and, along with the barbs, makes the tongue an efficient device for capturing insects.
Signs and sounds. As early as February or March a Downy Woodpecker pair indicate that they are occupying their nesting site by flying around it and by drumming short, fast tattoos with their bills on dry twigs or other resonant objects scattered about the territory.
The drumming serves as a means of communication between the members of the pair as well. Downys also have a variety of calls. They utter a tick, tchick, tcherrick , and both the male and the female add a sharp whinnying call during the nesting season.
Hatchlings give a low, rhythmic pip note, which seems to indicate contentment. When a parent enters the nest cavity, the nestlings utter a rasping begging call, which becomes stronger and longer as the chicks mature. Everyone who has visited the coast is familiar with gulls, those graceful, long-winged birds that throng the beaches and harbours and boldly beg for scraps.
The gulls are a family of birds that live mainly at sea, either along the shore, or out in the ocean itself. Worldwide, there are more than species of birds that live either partially or exclusively at sea, and these are generally known as "seabirds. The table below lists the 14 families of marine birds and the approximate number of species in each the exact number of species is continually being revised as genetic research reveals that some very similar-looking birds are so different in their genetic makeup that they constitute different species.
All species belonging to the albatross, auk, frigatebird, gannet, penguin, petrel, and storm-petrel families feed exclusively at sea. In addition, many species of cormorants, grebes, gulls, jaegers, loons, pelicans and terns feed either entirely or mainly at sea. The Phalaropes are the only shorebirds that feed at sea. The number of species that breed in Canada are shown in parentheses. Ducks and grebes that feed at sea are not included.
One of the heaviest of North American owls, the Snowy Owl Bubo scandiacus stands nearly half a metre tall, with a wingspan of almost 1. As is the case with most diurnal birds of prey—those that are active during the day—the female is larger and heavier than the male.
The average weight of the female is 2. Adult males may be almost pure white in colour. Adult females are darker, their white feathers barred with dark brown. First-year birds of both sexes are more darkly marked than their adult counterparts. Immature males resemble adult females, and immature females are heavily barred and may appear dark grey when seen from a distance.
The light coloration of Snowy Owls provides camouflage when the owls are perched on snow, but this advantage is lost in summer. As spring approaches and the ground becomes bare, Snowy Owls move to sit on patches of snow or ice. No one knows whether they do this to camouflage themselves or whether they are merely keeping insects away or staying cool. In strong wind, Snowy Owls may seek shelter by crouching on the ground behind a windbreak, such as a pile of stones, snowdrift, or bale of hay.
Of the 19 species of raptors, or birds of prey, in Canada, three are Accipiters. Accipiters are small to medium-sized hawks of swift flight that occur around the world. Accipiters can be distinguished from other types of hawks by their flight silhouettes see sketch. Like the buteos e.
In contrast, the wings of another group of hawks, the falcons, such as the Kestrel or Sparrow Hawk Falco sparverius , are pointed. Moose can live more than 20 years in the wild, but many begin to suffer the symptoms of old age before then.
A more typical lifespan is 10 to 12 years. Massive and majestic, moose are a cherished wildlife icon of North America.
Moose often roam through residential areas looking for food, and motorists occasionally collide with them. Hunting and habitat degradation are major threats to moose, but now climate change has caused moose populations in Minnesota to fall dramatically.
Moose are being hurt by overheating, disease , and tick infestation— all tied to warming temperatures. Overheating : Heat affects moose directly. These big mammals require cool climates to thrive, and summer heat stress leads to dropping weights, a fall in pregnancy rates, and increased vulnerability to disease. When it gets too warm, moose typically seek shelter rather than foraging for nutritious foods needed to keep them healthy.
Many New Hampshire cows have been under the weight necessary to successfully bear calves the last few years and are producing fewer calves than they did a decade ago. Many biologists are concerned that they will have a difficult time adapting to climatic variability. Too Many Ticks: Warmer winters have also caused spikes in the tick populations, further devastating the moose population.
Ticks leave moose weakened from blood loss, and many die of anemia. Ticks also leave moose more vulnerable to exposure in the winter after their attempt to rub off the ticks leaves them with hairless patches. The New Hampshire moose population has plummeted by more than 40 percent in the last decade from more than 7, moose to just 4, today, and biologists attribute some of this decline to increasing parasite loads influenced by shorter winters caused by climate change.
Wildlife watching and hunting are not just recreational pastimes; they are also a major contributor to the local economy, with wildlife-associated expenditures bringing in hundreds of millions of dollars to states like New Hampshire. In New Hampshire, declining moose numbers have lead to a 80 percent reduction in moose hunting permits, down from in to just in As the moose population drops, the recreational activities and associated revenue surrounding the species is sure to follow.
To ensure the survival of cherished wildlife species like the moose, policies and practices are needed to address climate change. It takes a lot of fuel to keep these herbivores running, and so moose consume around forty pounds of vegetation daily. But just like some people prefer carrots over broccoli, moose are discerning in their tastes. Research from the School of Forest Resources and Environmental Science at Michigan Technological University, the United States Geological Survey, and the University of Wyoming indicates that moose are picky in their food choices, and that environmental factors like predation and weather play a role in determining what plants a moose deems worthy to eat for dinner.
Understanding how moose forage for food in different conditions helps scientists understand the types of habitat moose need to survive and produce strong calves. The park consists of Isle Royale, the largest island in Lake Superior, and over two hundred surrounding smaller islands.
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