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  2. Bird food plants - Wikipedia

    en.wikipedia.org/wiki/Bird_food_plants

    Bird food plants are certain trees, shrubs and herbaceous plants bearing fruits which afford food for birds. These have been discovered by observation, and by the ...

  3. Pigeon intelligence - Wikipedia

    en.wikipedia.org/wiki/Pigeon_intelligence

    The birds were first trained on a limited set of paintings. The experiment has shown that a pigeon was able to obtain food by repeated pecking when shown a painting from Picasso; when it was a Monet, pecking had no effect. After a while, the pigeons would only peck when shown Picasso paintings.

  4. Ornithology - Wikipedia

    en.wikipedia.org/wiki/Ornithology

    Studies in bird behaviour include the use of tamed and trained birds in captivity. Studies on bird intelligence and song learning have been largely laboratory-based. Field researchers may make use of a wide range of techniques such as the use of dummy owls to elicit mobbing behaviour, and dummy males or the use of call playback to elicit ...

  5. Avian foraging - Wikipedia

    en.wikipedia.org/wiki/Avian_foraging

    Avian foraging refers to the range of activities and behaviours exhibited by birds in their quest for food. In addition to their unique body adaptations, birds have a range of described behaviours that differ from the foraging behaviours of other animal groups. According to the foraging habitat, birds may be grouped into foraging guilds ...

  6. Peterson Field Guides - Wikipedia

    en.wikipedia.org/wiki/Peterson_Field_Guides

    The Peterson Field Guides (PFG) are a popular and influential series of American field guides intended to assist the layman in identification of birds, plants, insects and other natural phenomena. The series was created and edited by renowned ornithologist Roger Tory Peterson (1908–1996).

  7. Bird feeding - Wikipedia

    en.wikipedia.org/wiki/Bird_feeding

    Large sums of money are spent by ardent bird feeders, who indulge their wild birds with a variety of bird foods and bird feeders. Over 55 million Americans over the age of 16 feed wild birds and spend more than $3 billion a year on bird food, and $800 million a year on bird feeders, bird baths, bird houses and other bird feeding accessories. [22]

  8. AOL Mail

    mail.aol.com

    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  9. Food web - Wikipedia

    en.wikipedia.org/wiki/Food_web

    Food webs are limited representations of real ecosystems as they necessarily aggregate many species into trophic species, which are functional groups of species that have the same predators and prey in a food web. Ecologists use these simplifications in quantitative (or mathematical representation) models of trophic or consumer-resource systems ...