Birds Kept in Captivity

Birds in captivity. When birds are kept in captiv­ity the exact amount and kinds of food eaten may be determined. The kinds eaten, under those condi­tions, however, are not a safe guide for determining the kinds eaten in nature, as doubtless, when hun­gry, birds will eat many things which they do not normally eat when at liberty. More accurate esti­mates may be made of the amount of food eaten, as the bird would doubtless require more food when free than when in captivity, so that the amount eaten in captivity would be a minimum.

Bob-white. The food habits of the bob-white have been studied with birds kept in captivity. Each of the following is a single day's rations: 1350 flies, 5000 aphids, 1532 insects, 600 seeds of burdock, 12,000 seeds of pigweed, 15,000 seeds of lamb's­quarters. The bob-white was found to eat in cap­tivity 61 kinds of weed seeds, besides the 68 kinds previously recorded, making a total of 129 species. It has also been found to eat 135 different kinds of insects.

Approximately one seventh of the robin's food is composed of materials beneficial to man, one third is composed of insects harmful to man, and about one half is composed of neutral elements.

So far more than sixty thousand stomachs, com­prising over four hundred species of birds have been examined by the Bureau of Biological Survey.

Still a fourth method is the combination of field and laboratory work. The birds are studied in the field in those localities where birds are collected for stomach examinations. Facts are gathered relative to the available food-supply for birds; these, in con­nection with the examination of the stomach, show what a bird will eat, what it prefers, and what it refuses.

Yahoo! News Search Results for bird captivity
Yahoo! News Search Results for bird captivity

Bird's apparent decline concerns species recovery biologist
It seems the Eastern Loggerhead Shrike may be losing its battle to flourish once again in Ontario. In 2006 there were 18 pairs of the endangered species counted in Ontario.[...]
Golden eagle returns home to wild after near-fatal injuries
A golden eagle is back home in the wild tonight after near-fatal injuries just months ago. He was rescued from Highway 101 near the Santa Margarita off ramp in February with massive trauma. Underweight with a bloody eye and injured head, the bird's survival wasn't guaranteed. "He was on the road on Highway 101 right here by Santa Margarita, and we think he was probably hit by a car," said ...
After rehab, eagle freed in North County
A male golden eagle returned to the wild in the North County on Thursday after nearly seven months o
Golden eagle back in wild after near-fatal injuries
A golden eagle is back home in the wild tonight after spending the past six months recovering from injuries. The male eagle, which Pacific Wildlife Care experts estimate is a few years old, was found in February on Highway 101 near the Santa Margarita off-ramp with head trauma and a bloody eye. John Green was driving southbound on the highway when he spotted the eagle in the fast lane. He ...
Theater events this week
PROFESSIONAL THEATERSARASOTA"THE MAGIC OF SUMMER": Las Vegas veteran magician Vince Carmen is a
Unfriendly skies: Forest Lakes, the Miracle on the Hudson, and Canada Geese
September 2, 2010 cover image. HOOK GRAPHIC The way that a pilot named Chesley ?Sully? Sullenberger saved all 155 onboard his disabled commercial jetliner was the feel-good story of 2009. Locally, however, the ?Miracle on the Hudson? helped launch some bad feelings in the Forest Lakes neighborhood. Since the incident and following a series of Congressional hearings and the release of previously ...
Dogs save woman from raiders at falconry centre
A YOUNG woman was beaten up by two men trying to steal birds of prey at a falconry centre.
The hard life of an eagle
An early mature bald eagle brought to the National Eagle Center in Wabasha last week wasn't able to be helped by experts in St. Paul and was euthanized. Deaths of such large birds, however, are not uncommon because the life of a raptor is hard.
Wildlife coated in Kalamazoo River oil spill get new lease on life
MARSHALL ? They have no voice, but that doesn?t mean they don?t have passionate advocates.
Stray rooster struts his stuff on West Brighton street, startling residents
VIDEO: Bird creates stir strolling around Metropolitan Avenue