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Jul 6, 2005
Skunk Myths
Jul 5, 2005
Chimney Swift
(Chaetura pelagica)
| Cool fact: Chimney Swifts perform an aerial courtship display by holding their wings stiffly upward in a V, one bird gliding closely after another, their chirping calls run together as a twittering song. Occasionally a third or fourth swift joins in pursuit. Listen to a recording of Chimney Swifts from
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As a group, swifts are highly specialized for high-speed aerial life. They have long, saberlike wings that are either extended in flight or folded back when at rest; unlike swallows, they are never held bent at the joints. Compared to swallows, swifts are less maneuverable and are less adept in flight at low speeds. Swifts forage for flying insects, sometimes quite high in the sky, and drink by dipping their bills in water while flying. Some species are even thought to sleep while flying in "aerial roosts," and it is also believed that Chimney Swifts can copulate in flight.
Chimney Swifts are widespread and common throughout North America east of the Rocky Mountains. On occasion, some have bred in Southern California and possibly in Arizona. Large flocks gather in the fall and roost in chimneys, sometimes by the hundreds or even thousands. The majority departs the breeding grounds in late August or September to begin the long migration south. Flying by day, they cross the Gulf of Mexico and travel through Central America to winter along river edges and the edges of tropical lowland forest in Amazonian Peru.
As forests with large hollow trees have disappeared, Chimney Swifts have readily taken to nesting in chimneys, and populations probably increased with the proliferation of suitable nesting sites. In recent decades, however, populations have declined at a rate of almost six percent per year. Chimneys provide upright surfaces sheltered from the weather much like hollow trees, and other sites that have been used for nesting include wells, silos, and the insides of abandoned or seldom-used buildings. The nest is a half-saucer composed of dead twigs plucked in flight with the feet, glued together and adhered to the chimney side with the swifts' hardened saliva. Chimney Swifts use their long, sharp claws to cling to the sides of chimneys.
Description: Chimney Swifts have been described as a "cigar with wings." They have streamlined bodies with stubby, blunt tails and short, wide bills. They are uniform gray-brown above; the underparts are dark brown from midbreast to the tail, and the throat is light gray gradually darkening toward the breast. The long, slender wings are black-brown, with slightly lighter flight feathers. The tail is dark gray-brown, but little of it shows except when it is spread. Each tail feather ends in a spine that extends past the web.
The similar Vaux's Swift (C. vauxi) breeds from California north to British Columbia. It is slightly smaller than the Chimney Swift and has a larger and whiter throat patch that extends into the midbreast. The colors of the lower breast and vent area are lighter than the colors on the Chimney Swift. The upperparts of a Vaux's Swift show a contrast between the dark mantle and lighter rump, unlike the more uniform dark upperparts of the Chimney Swift.
Jul 4, 2005
Basic Babybird Care
Jun 30, 2005
Starling
Starling
Feed insect eater diet - Supplement diet with mealworms, water-soaked currents or raisins, bits of non-citrus fruits, and berries such as pyracantha. Also sun flower seeds, peanuts (without the shell and unsalted). Also occasional bits of chopped rat or mouse.
European starling Sturnus vulgaris
Identification Tips:
- Length: 6 inches
- Pointed bill-yellow for most of year, dark in fall
- Black plumage with green and purple iridescence
- White spots scattered about head and body-largest in fall
- Dark wings and tail
- Pointed wings
- Short tail
- Juvenile gray-brown with faint streaking below
- Very common-frequently seen in large flocks
Similar species:
The European Starling is somewhat similar to blackbirds, cowbirds and grackles but has a shorter tail, chunkier body, white spots on the head and body (most evident in fall), and a yellow bill (not evident in the fall).
Jun 19, 2005
Eastern Screech-Owl
Eastern Screech-Owl
Otus asio
Description:
10" (25 cm). A small, mottled owl with prominent ear tufts; yellow to gree eyes. Both rufous and gray color phases occur, as well as brownish intermediates.
Habitat:
Open deciduous woods, woodlots, suburban areas, lakeshores, old orchards.
Nesting:
3-8 white eggs placed without a nest lining in a cavity in a tree or in a nest box.
Range:
Resident from Canada�s southern prairie provinces east to southern Maine, and south to Gulf of Mexico and Florida.
Voice:
A tremulous, descending wail; soft purrs and trills.
Discussion:
These common owls are fearless in defense of their nests and will often strike unsuspecting humans on the head as they pass nearby at night. When discovered during the day, they often freeze in an upright position, depending on their cryptic coloration to escape detection. The two color phases, which vary in their relative numbers according to geography, are not based on age, sex, or season.
Jun 8, 2005
Rainbow Wildlife Rescue and Rehabilitation North Texas
Common Myths and Facts about Birds:
Fact: Although some birds do eat worms, best example the American Robin, most birds cannot handle the parasites associated with them.
Myth: Baby birds that have been touched by humans will be abandoned by their parents
Fact: As far as songbirds are concerned, they have a very poor sense of smell and will return to young as soon as we humans leave them be.
Myth: Give baby birds water so they don't get dehydrated
Fact: Never give a baby bird water alone as they cannot close their airway to allow it to pass into their crops. They drown easily and their air sacks are very susceptible to bacterial infections.
Moisten bread for a temporary solution, pieces of fruit or mix a baby bird mash into a paste with water and place it in the crop with a 1cc syringe, without the needle. They will gape for vibration or peeping sounds. Insert the syringe in past the windpipe and inject it slowly into the crop. If any backs up into the throat, clear it with a Q-Tip. The windpipe is the hole directly behind their tongue.
Myth: Birds imprinted on humans should never be released
Fact: A bird that has imprinted on people is at a definite disadvantage for the first few weeks of freedom. Any that outlast these weeks have as good a chance as any other. You still have to supplement the diet of a freed bird at regular intervals through the day, they will learn to forage and will imprint on it's own kind in time.
Myth: My cat brought us a bird, but I rescued it and it is fine
Fact: Many times a bird that has suffered a cat or other animal attack appears fine at first but dies within 24 hours of the attack. This is usually due to a bacterial infection caused by the animal's saliva. Birds may be in great condition a day after an attack, only to die an hour later.
Jun 2, 2005
Opossums
Opossums
Virginia Opossums (Didelphis virginiana) inhabit the United States east of the Rocky Mountains, Central America, and Pacific coastal North America. The Virginia Opossum is the only marsupial found in the North America. In South America and Australia there are about 80 species of Opossums. Opossums lived during the era of dinosaurs - fossil remains have been found from 70 million years ago.
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| Picture courtesy of Beartracker's Animal Tracks Den Kim A. Cabrera |
Opossums - Taxonomy
- Class: mammalia
- Order: didelphimorphia
- Suborder: marsupials
- Family: didelphinae (Opossum)
- Genus: didelphis
- Species: didelphis virginiana.
Opossums - Reproduction
The breeding season for Opossums begins in December and may continue through October with most of the infants born between February and June. Like all marsupials, Opossum females have a well-developed pouch. They produce an average of 7 young, once or twice a year (litters of 17 kids have been reported). At birth, the infants are hairless, embryonic-looking, and weigh about 0.1 grams because the period of gestation is 12-13 days and because they are born at a very early stage in their development.Young Opossums have to make a long and difficult journey from the birth canal into the pouch and latch onto a teat. The mother helps by licking the hair leading into the pouch. There are only 13 teats in the pouch and not all may be functional, so the excess infants will not survive. The young open the eyes at around 60-70 days and are weaned at about 100 days of age. Then they are often carried as they cling onto the mother's back. After separation from the mother, littermates may share common dens for some time. Very few young Opossums survive to become adults.
May 27, 2005
Rainbow Wildlife Rescue in Stephenville, Texas, specializing in birds and small urban wildlife
Urgently needed:
electric heating pads
freezer
material for building flight cages and enclosures, such as boards, plywood, mesh, screens.
Wishlist
Garden Hoses
Flea & Tick Treatments
Rabbit Hutches
Parrot Food
Sprinklers
Rubbing Alcohol
Storage Sheds
Wild Rice
Fence Panels
Frozen Beef, Chicken/Turkey, uncooked, unspiced
Baby Scale
Frozen Venison
Full Spectrum UV Lights
Dry Cat and Dog Food
Mulch, Woodchips, Woodshavings, Bedding
Canned Cat and Dog Food
Scoopable Cat litter
Rabbit Pellets
Rolls of mesh and chicken wire
Towles, Blankets, Rags
Tents at least 7 feet tall (broken ok)
Rugs and Carpet
Tarps and Netting and Screens
Building Material
Artificial green Turf
Lumber
Artificial Plants/leaves/flowers, trees
Printing Paper
Kennels and Pens (indoors and outdoors)
Ink Jet Paper, glossy
Heating Pads
Large Paper Clips
Heating Lamps
Black (HP 56) and Color Print (HP 57) Cartridges
Incubators
Laundry Detergent
Cages, Tanks, Live-Traps
Dishwashing Liquid
Bleach
Bottles/nipples
Sponges
Heavy Bowls
Bottle Brushes
Cuttlebone
Window Cleaner
Animal Vitamins
Paper Towels
Wheatgerm
Tissue Paper
Gerber Mixed Baby Cereal
Rubber Gloves (small)
Electrolyte Drinks (no flavor)
Brooms and Dustpans
Bird Treats
Large Plastic Storage Containers (With lids)