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  2. Breeding biology of the tawny owl - Wikipedia

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

    [73] [76] In Denmark, the distance between post-fledging siblings ranged from 11 to 0.6 m (36.1 to 2.0 ft) during day and 32 to 6 m (105 to 20 ft) by night, meaning that they are associative with one another at this stage, and they would spend 20–80% of nighttime hours food begging, up to 82% in poor food years. [77]

  3. Elf owl - Wikipedia

    en.wikipedia.org/wiki/Elf_owl

    The young owlets fledge at about 10 weeks. Usually, chicks are born in mid-June or early July. By the end of July, they are almost always fledged and ready to set out on their own. After the young hatch, the female elf owl watches over them in the nesting cavity while the male often hunts for the young and the female herself.

  4. Fledge - Wikipedia

    en.wikipedia.org/wiki/Fledge

    Fledging stage of the northern mockingbird (Mimus polyglottos). Fledging is the stage in a flying animal's life between hatching or birth and becoming capable of flight. This term is most frequently applied to birds, but is also used for bats.

  5. Spotted owlet - Wikipedia

    en.wikipedia.org/wiki/Spotted_owlet

    Spotted owlets, however, show only a slightly lower melatonin concentration at night with a slight increase in the early afternoon. Other owls such as the barn owl show little day-night variation. [ 13 ] [ 14 ] Seasonal changes in glandular activity have been associated with environmental factors such as temperature and humidity.

  6. Great grey owl - Wikipedia

    en.wikipedia.org/wiki/Great_grey_owl

    The erection of nest platforms for great grey owls was pioneered by Robert Nero in central Canada in the 1970s. Nesting may occur from March to May. Unlike, for example, osprey or white storks, the great grey owl does not predictably re-use nest sites over consecutive years. Four eggs are the usual clutch size. Eggs average 42.7 mm (1.68 in ...

  7. Verreaux's eagle-owl - Wikipedia

    en.wikipedia.org/wiki/Verreaux's_eagle-owl

    There is a single recorded instance of an immature crowned eagle being aggressively displaced at night by an adult Verreaux's eagle-owl when it happened to encroach on the eagle-owl's territory but without bloodshed and eagle-owls would do well to avoid the exceptionally powerful eagle.

  8. Spectacled owl - Wikipedia

    en.wikipedia.org/wiki/Spectacled_Owl

    The spectacled owl can range from 41 to 52.3 cm (16.1 to 20.6 in) in length. Mass in males can range from 453 to 1,075 g (1.00 to 2.37 lb), whereas females can weigh from 680 to 1,250 g (1.50 to 2.76 lb). 10 males from the nominate subspecies (P. p. perspicillata) were found to average 767 g (1.69 lb) while 8 females averaged 908 g (2.00 lb).

  9. Spotted eagle-owl - Wikipedia

    en.wikipedia.org/wiki/Spotted_eagle-owl

    The incubation period lasts approximately 32 days. Spotted eagle-owlets will jump out of a nest that is off the ground at about five weeks of age and spend about ten days on the ground before they can fly. During this time, the owlets learn essential skills by mock-hunting and catching smaller prey such as insects.