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The filial imprinting of birds was a primary technique used to create the movie Winged Migration (Le Peuple Migrateur), which contains a great deal of footage of migratory birds in flight. The birds imprinted on handlers, who wore yellow jackets and honked horns constantly.
Puppet-rearing is a method of breeding birds in captivity for reintroduction into the wild. Chicks are fed using puppets that simulate adults of their species, worn by caregivers whose bodies are hidden from view, thereby reducing the birds' direct contact with humans. [1] [2] [3] Through imprinting, birds associate the first care images with ...
Partial imprinting occurs when alleles from both parents are differently expressed rather than complete expression and complete suppression of one parent's allele. [6] Forms of genomic imprinting have been demonstrated in fungi, plants and animals. [7] [8] In 2014, there were about 150 imprinted genes known in mice and about half that in humans ...
This principle had been discovered by Douglas Spalding in the 19th century, and Lorenz's mentor Oskar Heinroth had also worked on the topic, but Lorenz's description of Prägung, imprinting, in nidifugous birds such as greylag geese in his 1935 book Der Kumpan in der Umwelt des Vogels ("The Companion in the Environment of Birds") became the ...
Preventing imprinting and habituation is important in the rehabilitation process. Imprinting occurs when a young animal, specifically young birds, begin to see the rehabilitator as their primary caregiver. [1] It is possible to reverse this process in most animals, but it is permanent with birds.
The geomagnetic imprinting hypothesis holds that they are imprinted with the unique magnetic field that exists in their natal area. This is a plausible theory but has not been proven to occur. Pacific salmon are known to be imprinted on the water chemistry of their home river, a fact that has been confirmed experimentally.
These include genetic inheritance of host preference, host imprinting on young birds, returning to place of birth and subsequently choosing a host randomly ("natal philopatry"), choice based on preferred nest site (nest-site hypothesis), and choice based on preferred habitat (habitat-selection hypothesis). Of these hypotheses the nest-site ...
These birds are obligate brooding parasites, meaning they lay eggs in other birds' nests. [8] The learning of the songs and imprinting is also obligate for them because this is how they increase their fitness. The male have impressive vocal repertoires that can be used to mimic, calling, or mating.