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The presence of other parakeets encourages a pair to breed, which is why breeding in a group is better. Despite this, many breeders choose to breed in pairs to both avoid conflicts and know offspring's parentage with certainty. Budgerigars lay an average of 4-6 eggs, while other parakeet species may lay an average of 4-6 eggs. [citation needed]
Humans have a long history of eating eggs, both wild bird eggs and farm-raised bird eggs. [citation needed] Brood parasitism occurs in birds when one species lays its eggs in the nest of another. In some cases, the host's eggs are removed or eaten by the female, or expelled by her chick.
Ostrich eggs are the largest of all eggs, [4] though they are actually the smallest eggs relative to the size of the adult bird — on average they are 15 cm (5.9 in) long, 13 cm (5.1 in) wide, and weigh 1.4 kilograms (3.1 lb), over 20 times the weight of a chicken's egg and only 1 to 4% the size of the female. [5]
The Alexandrine parakeet ... Females lay 2 to 4 white, blunt oval-shaped eggs, measuring 27 to 34 mm (1.1 to 1.3 in). The average incubation period is 24 days. The ...
A female budgerigar will lay her eggs on alternating days. [38] After the first one, there is usually a two-day gap until the next. She will usually lay between four and eight eggs, which she will incubate (usually starting after laying her second or third) for about 21 days each. [38]
Pasture-raised hens aren’t any more immune to bird flu, and their premium eggs aren’t getting cheaper. ... Fewer than 150 commercial egg farms with flocks of at least 75,000 now house over 95% ...
More than 43 million of the 58 million birds slaughtered over the past year to control the bird flu virus have been egg-laying chickens, The Associated Press has reported.
A study using digital photography and spectrometry along with an automatic analytical approach to analyse cuckoo eggs and predict the identity of bird females based on their egg appearance showed that individual cuckoo females lay eggs with a relatively constant appearance, and that eggs laid by more genetically distant females differ more in ...