The behavior of common and lesser kestrels (小茶隼) may illustrate different feeding behaviors of similar birds with different roosting habits. The common kestrel hunts vertebrate (有脊椎的) animals in a small, familiar hunting ground, whereas the very similar lesser kestrel feeds on insects over ...
【题目】Feeding BirdsFeeding birds has lots of fun. There are manytypes offeeders(鸟食罐) and each wil attract(吸引) different birds. The bird seeds(鸟饵) andfood you put in the feeders will also decidewhich birds will come to your feeders.Wild birds eat other food more than birdseeds!
④ Morris says that there is a theory that wild birds can get “hooked” on easy meals, losing interest in other types of food. Another danger, he says, is that birds fed regularly end up accustomed to humans, placing themselves at greater risk of predation(捕食).【1】How can feeding ...
Just as a snowflakewent on to feed a puddle that filled a stream and then the river, thepumpkin patch is a gathering of molecules from my old goats, chickens,and cats, feeding the underworld of dirt creatures. And somewhere, myfather's ashes mingle with birds, air, and sea. —Katherine...
Learn how bird feeders impact wild birds and the environment so you understand the good and bad aspects of feeding the birds in your garden or yard.
3. What does the speaker suggest we do when feeding birds in winter? 1 A It is entertaining. B It is a costly hobby. C It takes lots of time. D It requires training. 2 A They can harm nearby plants. B They may catch some disease. C They fight each other for food. D They may...
(either using direct counts of breeding birds or using ASRs estimated by all other methods, see Methods) both effect sizes and the direction of relationships remain consistent with those for the whole species set. The relationships remain statistically significant (or marginally significant) in most ...
These were made during the periods October 1945–March 1946 and October 1946–March 1947, and showed that there was a rough similarity between the feeding frequency of all three species. Each shows almost equal maxima in the forenoon and afternoon and a midday slackening of activity. Beyond ...
The length of the migration period often depends on the feeding habits of different birds. Most grain-eating birds migrate earlier than insectivorous birds. The last insectivores to migrate are those that catch insects in the air (swifts, swallows). Some species, for example, snipes, arrive ...
“If food availability is driving the nestlings’ immune response to parasites, feeding early could really help the birds,” Knutie says. The other aspect of the response Knutie explored was whether the antibody response could be related to the birds’ gut microbiota. To study this, the microb...