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  2. File:Egg Development Time by Temperature.jpg - Wikipedia

    en.wikipedia.org/wiki/File:Egg_Development_Time...

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  3. Egg incubation - Wikipedia

    en.wikipedia.org/wiki/Egg_incubation

    Even in other birds, ambient temperatures can lead to variation in incubation period. [7] Normally the egg is incubated outside the body. However, in one recorded case, the egg incubation occurred entirely within a chicken. The chick hatched inside and emerged from its mother without the shell, leading to internal wounds that killed the mother ...

  4. Hamburger–Hamilton stages - Wikipedia

    en.wikipedia.org/wiki/Hamburger–Hamilton_stages

    The morphology of the limbs, starting with the appearance of wing bud at stage 16, is a useful landmark for staging chick embryos until hatching. Between stages 15 and 35, the appearance of specific structures within the limbs (such as joints and digits); at later stages the length of the toes are used.

  5. Precociality and altriciality - Wikipedia

    en.wikipedia.org/wiki/Precociality_and_altriciality

    Very precocial birds can be ready to leave the nest in a short period of time following hatching (e.g. 24 hours). Many precocial chicks are not independent in thermoregulation (the ability to regulate their body temperatures), and they depend on the attending parent(s) to brood them with body heat for a short time. Precocial birds find their ...

  6. Hatchling - Wikipedia

    en.wikipedia.org/wiki/Hatchling

    The behavior of an amphibian hatchling, commonly referred to as a tadpole, is controlled by a few thousand neurons. [4] 99% of a Xenopus hatchling's first day after hatching is spent hanging from a thread of mucus secreted from near its mouth will eventually form; if it becomes detached from this thread, it will swim back and become reattached, usually within ten seconds. [4]

  7. Chicken - Wikipedia

    en.wikipedia.org/wiki/Chicken

    Hens remain on the nest for about two days after the first chick hatches; during this time the newly hatched chicks feed by absorbing the internal yolk sac. [42] The hen guards her chicks and broods them to keep them warm. She leads them to food and water and calls them towards food. The chicks imprint on the hen and subsequently follow her ...

  8. Western house martin - Wikipedia

    en.wikipedia.org/wiki/Western_house_martin

    The female does most of the incubation, which normally lasts 14–16 days. The newly hatched chicks are altricial, and after a further 22–32 days, depending on weather, the chicks leave the nest. The fledged young stay with, and are fed by, the parents for about a week after leaving the nest.

  9. Red-billed chough - Wikipedia

    en.wikipedia.org/wiki/Red-billed_chough

    The female incubates for 17–18 days before the altricial downy chicks are hatched, and is fed at the nest by the male. The female broods the newly hatched chicks for around ten days, [35] and then both parents share feeding and nest sanitation duties. The chicks fledge 31–41 days after hatching. [4]