Candidate for Bachelor of Science . State University of New York, College of Environmental Science and Forestry. Michael A. Pardo . Young squirrels in the nest are vulnerable to raccoons, snakes, and red squirrels. Chorus Frogs are about the size of large grape, about 2.5cm long on average, with a maximum of 4cm. Albino eastern grey squirrels also occur and in the United States a few small, completely white populations are found. The Ruffed Grouse is frequently called the “partridge.” This leads to confusion with the Gray, or Hungarian, Partridge, which was introduced to Canada from Europe. The American Lobster (Homarus americanus) is a marine invertebrate which inhabits our Atlantic coastal waters. Males and females are identical in rather plain brown or grey plumage although females are slightly larger. These noises are at a very high frequency, and so cannot be heard by humans. Male and female birds look alike. In reality the even-tempered grey squirrel usually gives way to the more aggressive red in a confrontation, avoiding a fight. The North Atlantic Right Whale (Eubalæna glacialis) is one of the rarest of the large whales. Farther south the black phase is less common and is not found at all in the southern United States. The eastern grey squirrel spends most of its life in trees, where it moves about with great agility. Diet: Nuts, acorns, and seeds they steal that people put out to feed the birds. The copulation period is for 30 seconds maximum. Grey squirrels occasionally fall prey to Great Horned Owls or Barred Owls. Its tail, also called flukes or caudal fins, is broad (six m wide from tip to tip! Adult males start to follow females when the latter enter their estrus stage. Indeed, turtles have an impressively long life for such small animals. The Common Raven is often mistaken for an American Crow in southern Canada and the United States. The lobster’s mouth is located just below its eyes. The males have a downturned tail and no fleshy folds. Their ears open by four weeks and the eyes a week later. The average weight of the female is 2.3 kg compared to 1.8 kg for the male. The species can be difficult to distinguish from other small sandpipers. These plumages keep the birds, particularly the female, well camouflaged at all times. ). They’re normally reddish-brown in colour. Indeed, the Latin word for squirrel, sciurus, is derived from two Greek words, skia, meaning shadow, and oura, meaning tail. The fox squirrel (Sciurus niger), also known as the eastern fox squirrel or Bryant's fox squirrel, is the largest species of tree squirrel native to North America.Despite the differences in size and coloration, it is sometimes mistaken for American red squirrels or eastern gray squirrels in … In the snow these tracks often look like two exclamation marks (!!). It is thought that the absence of dorsal fin actually helps the narwhal navigate among sea ice. These squirrels have bushy tails that vary in color from pale gray to brownish. Some juveniles do not replace any flight feathers in their first winter, as these are quite new. 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. When not in flight, the Barn Swallow can be observed perched on fences, wires, TV antennas or dead branches.Both male and female Barn Swallows sing both individually and in groups in a wide variety of twitters, warbles, whirrs and chirps. State University of New York, College of Environmental Science and Forestry. The tracks of an eastern gray squirrel are difficult to distinguish from the related fox squirrel and Abert's squirrel, though the latter's range is almost entirely different from the gray's. But while it is average-sized, it’s far from average-looking! Eastern Gray Squirrel (Sciurus carolinensis) Species Code: SCCA An introduced species. Squirrels including the eastern grey squirrels are protected wildlife in Canada. The scientific name for the Ruffed Grouse is Bonasa umbellus. Gestation, or pregnancy, takes 40 to 44 days. Weight: Can weigh between 3/4 and 1 and 1/2 pounds. The western grey squirrel ranges from about 18 inches to 24 inches in total length with the body and the tail. The tracks of eastern grey squirrels are distinctive: forefeet leave a round print about 2.5 cm long; the hindprints are more triangular, approximately 6 cm long. The species may be the fastest swallow, as it’s been recorded at speeds close to 75 kilometers per hour (km/h). Because the western grey squirrel Sciurus griseus does not occur in Canada, the eastern grey squirrel is referred to by most Canadians simply as the grey squirrel. Gray Squirrel (Sciurus carolinensis Ord) From: Saunders , D. A. Signs and sounds There are typical signs that eastern grey squirrels inhabit an area. The eastern gray squirrel has a grayish body with some black, white or brown fur and a whitish belly. These whales have a mottled black and white, grey or brownish back, but the rest of the body (mainly its underside) is white. It has a ruff of feathers on the throat, which are called 'hackles', and a wide, robust bill. Its back and tail plumage is a distinctive steely, iridescent blue, with light brown or rust belly and a chestnut-coloured throat and forehead. In the summer insects are eaten and are probably particularly important for young squirrels. It is believed that they live at least 70 years, maybe even over 100 years, since closely related species can live as long. Their success as a species has put them in a constant battle for food, water, and housing, and that battle sometimes encroaches on our domain. Natural History Notebooks, Eastern Grey Squirrel, Fletcher Wildlife Garden, Eastern Grey Squirrel. Combining the two means loosely that the squirrel is one that sits in the shadow of its own tail. When it comes to the ground to feed or store food in hiding places to eat later, it also has great mobility and can reach speeds of up to 25 km per hour. The yellowish brown summer coat becomes thicker and gray in winter, the pelage of some individuals strikingly silver-gray. It is easily recognizable because of its size (between 54 and 67 centimetres long, with a wingspan of 115 to 150 cm, and weighing between 0.69 and two kilograms) and its black plumage with purple or violet lustre. Its head makes up about a fourth of its body length, and its mouth is characterized by its arched, or highly curved, jaw. 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. In winter small holes in the snow or ground indicate where squirrels have been digging to find hidden stores of nuts buried earlier in the year. This is where they have dug for their stored nuts. The coloration of the eastern fox squirrel varies both within and between different popul… The gnawed husks and shells of nuts, especially acorns, hickory nuts, walnuts, beechnuts, and pecans, can be found littering the ground around the base of a tree where the squirrels have been feeding. Eastern gray squirrels are known to breed twice a year. As they grow older, they will progressively become paler again. It varies in colour from rust to black. Males are hard to tell from females at a distance, but they are larger with larger ruffs and a longer tail. The tail has many important functions. The fur is a light grey woolly colour except the face which is darker. Their habit of burying nuts, many of which are forgotten and later germinate, helps to re-establish the hardwood forests that have been severely reduced by human harvesting. It may come to land to flee from predators if needed, but the rest of its time is spent in the ocean. Some gray squirrels are completely black; this is called melanism. The worst insect pest is the botfly larva. Considering its weight, it’s fairly short, giving it a stocky, rotund appearance. Parasites have a harmful effect on the health and productivity of the eastern grey squirrel. The eastern gray squirrel is the most common tree squirrel in local urban areas. It may also have a reddish color in some cases. There are about 320 species of turtles throughout the world, inhabiting a great variety of terrestrial, freshwater and marine ecosystems on every continent except Antarctica and its waters. The Sea Otter’s fur is one of the thickest in the animal kingdom, with 150,000 or more hairs per square centimetre. Contrary to popular belief, Little Brown Bats, like all other bats, are not blind. Ptarmigans have three seasonal plumages per year, instead of the two that are usual for most birds. The fish have hooked jaws and sharp teeth. The Sea Otter (Enhydra lutris) is the smallest marine mammal in North America – males measure 1.2 metres in length and weigh an average of 45 kilograms (females are a bit smaller). Their long muscular tail is used for balance when hopping and as a fifth limb when movements are slow. Unique characteristics If necessary, a squirrel can lose its tail sheath and some vertebrae, or bones in its back, to escape a predator’s grasp. The failure of a vital food source can lead to either starvation or a general weakening of the squirrel population, making it vulnerable to diseases and pests. When perched, this swallow looks almost conical because of its flat, short head, very short neck and its long body. By nodding his head and ruffs, and spreading his tail and strutting, the male identifies himself to the female and encourages her advances. That squirrel was almost as big as she, but the mink had no problem carrying that prey across the ground and down into her nursery. All ptarmigans have feathered feet, unique among chickenlike birds, which improve their ability to walk in snow. The appearance of the eastern grey squirrel (Sciurus carolinensis) in western Canada took place via an intentional release of a small number of animals into Stanley Park in the early 1900s (see Steel et al. The Right Whale’s head is partially covered in what is called callosities (black or grey raised patches of roughened skin) on its upper and lower jaws, and around its eyes and blowhole. displaced by the introduced Grey Squirrel . The narwhal’s colouring gives researchers an idea about how old an individual is. Signs that they have been or are present: One can find gnawed acorn husks or other nutshells littering the ground. These design features all reflect the lifestyle for which the birds are adapted—long legs for wading in water or on mudflats or marshes, the long bill for searching for tiny animal and insect prey by probing into Arctic tundra or a variety of substrates, and long wings and a streamlined body for swift flight over long distances. Description: The Eastern Gray Squirrel as a bushy tail bordered with white hairs. The mammals of Canada. Stanley Park is a reasonably large (≥ 4 km2) municipal park within the sprawling city of Vancouver. The eastern grey squirrel is an opportunist when it comes to finding food and can therefore live in a wide variety of habitats. The change to the greyish-brown fall-winter plumage usually starts on the breeding grounds and is completed after arrival on the non-breeding area. In the male the broad band of dark colour in the tail is usually unbroken. Their second litter is born in late summer. Honors Director: _____ William M. Shields, Ph.D. Feeding. These individuals should not be confused with the American red squirrel Tamiasciurus hudsonicus, which is common to Canada’s northern forests, nor with Douglas’s squirrel T. douglasii, found in British Columbia. Unlike seals and sea lions, the Sea Otter has little body fat to help it survive in the cold ocean water. Despite their appearance, squirrel nests are actually quite sturdy. Weaning, or making the transition from the mother’s milk to other food, begins at this time and at about 12 weeks the youngsters will be almost adult size and quite independent of their mother. Some distinguishing characteristics of this species are the large mouth, called and oral disc and a large eye. Their tadpoles (the life stage between the egg and the adult) are grey or brown. It also has a narrower bill and lacks the raven’s hackles. It is thought to have been named by whalers as the “right” whale to hunt due to its convenient tendencies to swim close to shore and float when dead. Females are lighter in colour than males. Greys are in the majority in the central parts of the continent, and on the west coast most grouse are reddish brown. Delmarva fox squirrels (S.n. Its body is gray on top and white underneath in the winter and a tallish color in the summer. Sciurus carolinensis is a medium sized tree squirrel with no sexual dimorphism in size or coloration. Species Code: SCCA Large numbers of squirrels are killed every year by cars. This species also has unique dentition. In the winter, holes in the snow are visible and in the spring, holes in the earth are visible. Females may mate with more than one male as well. Also Known as: Gray or grey squirrel : Description: Color: Gray and brown body, white belly Length: Head to Body: 9.1-11.8 in (23-30 cm) Tail length: 7.5 … Its tail is used for balance when dashing between tree branches. Four pairs of these legs are used mainly to walk and are called pereiopods. They have the audacity to build nests in tree… Like salmon, it lives both in freshwater and saltwater. It is born in saltwater and migrating to freshwater to grow and mature before returning to saltwater to spawn and die. The Semipalmated Sandpiper Calidris pusilla, only about 30 g in weight and 14 cm long, is one of Canada’s smallest shorebirds. A raven may live up to 21 years in the wild, making it one of the species with the longest lifespan in all passerine birds. The light coloration of Snowy Owls provides camouflage when the owls are perched on snow, but this advantage is lost in summer. Breeding occurs in December-February and May-June and is slightly delayed in more northern latitudes. They eat at our feeders and nibble our vegetation, make holes in our lawns, nest in our attics (sometimes chewing on electrical wires), fall in our swimming pools while trying to get a drink, and get trapped in our chimneys. Many experts believe that it is a secondary sexual character, similar to deer antlers. An average of three young are born, although the litter size may range from one to six. When they are getting ready to spawn they shrink in length and their dorsal fins overlap. The Roseate Tern Sterna dougallii is a seabird that resembles a small gull, but it has the typically slender body, short legs, and long, pointed wings of all terns. Although the average lifespan of a Barn Swallow is about four years, a North American individual older than eight years and a European individual older than 16 years have been observed. Gray squirrels can reach amazingly high densities when there are abundant … The Pacific Cod and Alaska Pollock also have three rounded dorsal fins and two anal fins. Lampreys are an amazing group of ancient fish species which first appeared around 360 million years ago. Appearance. Lobsters have ten legs, making them decapod (ten-legged) crustaceans, a group to which shrimp and crabs also belong (other arthropods have a different number of legs, like spiders, which have eight, and insects, which have six). Three species are present in North America: the Willow Ptarmigan Lagopus lagopus, the White-tailed Ptarmigan Lagopus leucurus, and the Rock Ptarmigan Lagopus mutus.Like other grouse, ptarmigans have chunky bodies, short tails and legs, and short, rounded wings. It has largely replaced the Red Squirrel in the United Kingdom. APPROVED . Adirondack Mammals. This camouflage helps protect the grouse from their predators. One of the heaviest of North American owls, the Snowy Owl Bubo scandiacus stands nearly half a metre tall, with a wingspan of almost 1.5 m. 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 Northern Giant Pacific Octopus (Enteroctopus dofleini) is a large cephalopod mollusk, which means it’s related to gastropods (snails and slugs) and bivalves (clams and oysters). A litter may contain both black and grey individuals. The octopus is soft-bodied, but it has a very small shell made of two plates in its head and a powerful, parrot-like beak. The underside of the tern is white, tinged with pink early in the breeding season; however, this pale rosy tint is not a good field mark, or identification characteristic, because it varies from bird to bird, and the colour tends to be bleached out by the sun. Corn, wheat and other crops are eaten, particularly in the winter. Adirondack Mammals. For example, these teeth are called inner laterals. This is why lamprey are often unfairly called “aquatic vampires”. Individual squirrels are often seen feeding close to each other without any aggressive activity, and in winter several animals may share the same tree den. Their belly is generally yellow-white to light green. Despite their name, they come in a variety of colors, and will often display a mix of gray, brown, black, and cinnamon fur. eastern gray squirrel (Sciurus carolinensis), the east-ern fox squirrel (S. niger), the southern flying squirrel (Glaucomys volans), the northern flying squir-rel (G. sabrinus), and the only nonarboreal member of the group, the eastern chipmunk (Tamias striatus). Males tend to be smaller than females, reaching a size of about 0.4 m. With its small pectoral fins right behind its gills, absence of pelvic fins, long dorsal and ventral fins and the thin coat of mucus on its tiny scales, the adult eel slightly resembles a slimy snake but are in fact true fish. Mollusks are invertebrates, meaning they have no bones. The total length of the squirrel ranges from 380 to 525 millimeters (mm). The eastern grey squirrel, whose scientific name is Sciurus carolinensis, is the most common and largest tree squirrel in eastern Canada. In ptarmigans, the moult, or shedding of old feathers, starts with the head and progresses towards the tail. This fur can also be more dark brown or, as in the case in much of the popu… Under the whale’s skin, a blubber layer of sometimes more than 30 centimetres thick helps it to stay warm in the cold water and store energy. All Canadian freshwater turtles can retreat in their shells and hide their entire body except the Common Snapping Turtle (Chelydra serpentina). Females develop fleshy folds on either side of their cloaca and an upturned tail. If you see a black squirrel, it is most likely an eastern grey squirrel that is melanistic. In cities, dogs and cats take their toll, although adult squirrels are usually too agile to be caught. Each lateral tooth has cusps and together they always occur in a 2-3-3-2 cusp pattern. It is known by a variety of names in Canada, including: the Atlantic Eel, the Common Eel, the Silver Eel, the Yellow Eel, the Bronze Eel and Easgann in Irish Gaelic. Physical Characteristics: The medium-sized, bushy-tailed gray squirrel has primarily gray upperparts and silvery-gray underparts. Thus, the length of the tusk may indicate social rank through dominance hierarchies and assist in competition for access to females. The eastern gray squirrel is a very common, North American, tree dwelling rodent. Dec 29, 2018 - Explore Grace Mitchell's board "Eastern Gray Squirrel" on Pinterest. They give a loud call when threatened, to which other swallows will react, leaving their nests to defend the area. Unique characteristics. Eastern Grey Kangaroo, Macropus giganteus, is a marsupial mammal that belongs to a small group called macropods. Eastern gray squirrels can grow 9 to 12 inches in length and reach two pounds upon sexual maturity. The eastern grey kangaroo (Macropus giganteus) is a marsupial found in the eastern third of Australia, with a population of several million. This bounding stride may be as much as 1 m if the animal is in a hurry. Adults tend to live only for one year, but some have lived as many as three years. Finally, the Red-eared Slider (Trachemys scripta elegans), has been introduced to Canada as released pets and, thus, is not a native species. A platform of twigs forms the base of the nest proper and an outer shell of leaves and twigs makes up the conspicuous outside part of the nest. It’s also the only member of its family that doesn’t need land at all; it’s completely adapted to life in the water. Description: The Eastern Gray Squirrel as a bushy tail bordered with white hairs. It has a black forehead and nape, and its upper wing is a pale grey. In rocky areas, a cod may be a darker brown colour. Eastern Grey Squirrel Removal. The tusk grows all throughout a male’s lifespan but slows down with age. When he is in display before the female, these are erected and surround his head almost like an umbrella. An introduced species. In winter, male—and some female—Rock Ptarmigans sport a black stripe that extends through the eye to the bill (as if they had put on charcoal goggles to prevent snow blindness), distinguishing them from male Willow Ptarmigans. Males compete among themselves for the ability to mate with female eastern grey squirrels. Order: Rodentia Family: Sciuridae. © Her Majesty the Queen in Right of Canada, represented by the Minister of the Environment, 1983, 1990. The female generally gives birth in a warm, sheltered nest that she has prepared in a cavity inside a hollow tree. Another species, the Pacific Pond Turtle (Clemmys marmorata), is now Extirpated, having disappeared from its Canadian range. This danger is limited, however, because owls are nocturnal hunters whereas squirrels are most active in the daytime. The Cowichan Lake lamprey (Entosphenus macrostomus) is a freshwater parasitic lamprey species. 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. Its body is gray on top and white underneath in the winter and a tallish color in the summer. The male Ruffed Grouse is about the size of a bantam chicken and weighs about 500 g. The females are smaller. On its head, the lobster has eyes that are very sensitive to movement and light, which help it to spot predators and prey, but are unable to see colours and clear images. During the summer, the winged seeds of maple (samaras) and elm seeds are the major items in the diet, together with a wide variety of berries and other wild fruits, seeds, nuts, and apples. Indeed, the Latin word for squirrel, sciurus, is derived from two Greek words, skia, meaning shadow, and oura, meaning tail. As they congregate, the female becomes agitated and begins to race through the trees followed closely by all the males. Black is often the dominant colour in Ontario and Quebec, toward the northern limits of the species’ range. Eastern Gray Squirrel (Sciurus carolinensis) 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. 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