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  2. Emlen funnel - Wikipedia

    en.wikipedia.org/wiki/Emlen_funnel

    An ink pad is placed on the bottom, so when the bird hops or flutters onto the sloping walls it leaves a track before slipping back down again. The bird's view through the top of the cage can be manipulated to show how it responds to different apparent "star patterns" (actually generated in a planetarium ).

  3. Viola pedata - Wikipedia

    en.wikipedia.org/wiki/Viola_pedata

    Viola pedata, the birdsfoot violet, bird's-foot violet, or mountain pansy, is a violet native to sandy areas in central and eastern North America. Varieties [ edit ]

  4. Vacuum activity - Wikipedia

    en.wikipedia.org/wiki/Vacuum_activity

    During sham dustbathing, the birds perform all the elements of normal dust bathing, but in the complete absence of any substrate. [ 11 ] [ 12 ] [ 13 ] This behaviour often has all the activities and temporal patterns of normal dustbathing, i.e. the bird initially scratches and bill-rakes at the ground, then erects her feathers and squats.

  5. The AOL.com video experience serves up the best video content from AOL and around the web, curating informative and entertaining snackable videos.

  6. Supernormal stimulus - Wikipedia

    en.wikipedia.org/wiki/Supernormal_stimulus

    Animals exhibiting, or responding to, characteristics that represent a supernormal stimulus usually display them as a result of selective pressures.Co-evolution between animals displaying supernormal stimuli, and the organisms responding to the supernormal stimuli, rely on evolution and propagation of genetics, behavioral patterns, and other biological factors. [4]

  7. Codex on the Flight of Birds - Wikipedia

    en.wikipedia.org/wiki/Codex_on_the_Flight_of_Birds

    The first commentary on birds, for this codex, are made on the second page of the fourth folio. Leonardo describes how the tips of a bird's feathers are always the highest part of the bird, when its wings are lowered, and how the bones in the wing are the highest part of a bird when its wings are raised.

  8. Peter and Rosemary Grant - Wikipedia

    en.wikipedia.org/wiki/Peter_and_Rosemary_Grant

    Daphne Major, in the Galápagos Islands, was a perfect place to perform experiments and study changes within birds. It was isolated and uninhabited; any changes that were to occur to the land and environment would be due to natural forces with no human destruction. [ 9 ]

  9. Harvey Samuel Whistler - Wikipedia

    en.wikipedia.org/wiki/Harvey_Samuel_Whistler

    Harvey Samuel Whistler Jr. was born September 7, 1907, in Fresno, California, [4] to hotel owners, Harvey Samuel and Sallie Byrn Whistler. [5] His mother, a classically trained pianist, insisted that music be part of Harvey Jr.’s education and oversaw his earliest training on piano.