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  2. Fledge - Wikipedia

    en.wikipedia.org/wiki/Fledge

    Birds are vulnerable after they have left the nest, but before they can fly, though once fledged their chances of survival increase dramatically. [5] A pigeon fledgling on a tiled floor. One species, the ancient murrelet, fledges two days after hatching, running from its burrow to the ocean and its calling parents. Once it reaches the ocean ...

  3. Breeding biology of the tawny owl - Wikipedia

    en.wikipedia.org/wiki/Breeding_biology_of_the...

    Of 22 radio-tagged young tawny owls in Kielder, 36.4% (8) owls died 10-106 days after fledgling but while still on parent's ranges, another 22.7% (5) died after leaving parents territory at 40–147 days after fledgling, 22.7% (5) also disappeared after fledged but while still dependent and were quite likely preyed upon while the only 4 ...

  4. Nesting instinct - Wikipedia

    en.wikipedia.org/wiki/Nesting_instinct

    In birds it is known as "going broody", and is characterized by the insistence to stay on the nest as much as possible, and by cessation of laying new eggs. Marsupials do not exhibit a nesting instinct per se, because the mother's pouch fulfills the function of housing the newborns.

  5. Welcome swallow - Wikipedia

    en.wikipedia.org/wiki/Welcome_swallow

    The young are fed by both parents, and leave the nest after a further two to three weeks. Males have been known to remove fecal sacs after coaxing the cloaca of the young to dispose of them as well. [15] The fledglings stay in the nest from 18 to 23 days and become completely independent around 35 days.

  6. Chimney swift - Wikipedia

    en.wikipedia.org/wiki/Chimney_swift

    Incubated by both parents, the eggs hatch after 19 days. Baby chimney swifts are altricial—naked, blind and helpless when they hatch. Fledglings leave the nest after a month. [57] The average chimney swift's life span is 4.6 years, [60] but one is known to have lived more than 14 years.

  7. Philopatry - Wikipedia

    en.wikipedia.org/wiki/Philopatry

    Birds, in particular, that disperse as fledglings will take advantage of exceptional navigational skills to return to a previous site. [9] Philopatric individuals exhibit learning behaviour, and do not return to a location in following years if a breeding attempt is unsuccessful. [ 10 ]

  8. Meet the new residents of Delaware River island: Bald eagles ...

    www.aol.com/meet-residents-arrow-island-pair...

    The site on the island is apparently new. The National Park Service, which owns the island, does not publicly acknowledge the existence of bald eagle nests since they are a protected species.

  9. Nest-building in primates - Wikipedia

    en.wikipedia.org/wiki/Nest-building_in_primates

    After the foundation has been built, they bend smaller, leafy branches onto the foundation; this serves the purpose of and is termed as the "mattress". After this, orangutans braid the tips of branches into the mattress. This increases the stability of the nest and forms the final process of nest building.