specifically from the coronavirus family. It affects the upper respiratory tract of the chicken, as well as the reproductive tract. It can cause a significant drop in egg-laying, cause crinkly looking eggs, or stop laying altogether. It can also cause ...
on all aspects of avian biology -- including anatomy, physiology (circulation, digestion, respiration, flight, etc.), reproduction (territory, egg-laying, incubation, hatching), & mortality (longevity, diseases) -- as well as tips for backyard birders, an extensi...
noun warm-blooded egg-laying vertebrates characterized by feathers and forelimbs modified as wings verb watch and study birds in their natural habitat 更多 英文 词典里"bird"的近义词 doll, birdwatch, dame是 英文 同义词词典中“bird"的热门同义词。 doll...
To record the vocalisations of male great tits, we took advantage of their behaviour during the reproductive period, when they engage in continuous singing near their nests at dawn before and during egg laying.84 Collectively, this vocal display is referred to as the dawn chorus, and it has ...
Our study indicates that the elements of bird behaviour related to the reproductive roles of the sexes in particular species are reflected in the anatomy of the digestive system. In the case of the White Stork, where there are sex differences in energy input and parental functions in the pre-...
(bill length and mass) and MPF either in reactive nor spontaneous singing. Mass might vary with the progression of egg laying (for which we do not have data), which might explain the lack of significant correlations. Interestingly, we did not also find a significant relationship between body...
A behavior where a bird lays its eggs in the nests of other birds, relying on them to raise their young.Brood parasitismdoes not only involve mixed species; in their communal nesting colonies, Cliff Swallows have beenobserved laying eggsin other Cliff Swallow nests. ...
Which among the following is an example of adaptive radiation? a. wings of insect, bird, bat b. tadpole larva of herdmania c. Darwin's finches of Galapagos d. egg laying mammals Which of the following characteristics do birds share ...
The Adélie penguin chicks have an egg tooth which is a bump on the top of their beaks, which helps them to break out of the egg. Once hatched, the parents still take turns looking after their young while the other goes off to gather food. After about a month, the chicks congregate...
Smaller bird species such as cockatiels and lovebirds appear to have been unintentionally bred for egg production, resulting in health issues such as chronic egg laying and subsequent egg binding in the pet birds produced from this stock. Public education regarding the dangers of improper early ...