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Estimating the diet of urban birds: the problems of anthropogenic food and food digestibility

By I. Ottoni, F. F. R. de Oliveira, R. J. Young

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Abstract

A variety of methods exist for assessing the diets of wild birds, each of which has its strengths and weaknesses. The objective of this study was to compare diet data collected in parallel by behavioural observations and faecal analysis from an urban population of Penelope superciliaris (rusty-margined guan) over a 12-month continuous period (April 2006 to March 2007). Visual observations (114 h) and faecal samples (N=482) were analysed for food item content and material was identified to the finest level of taxonomic resolution possible. In total, 82 food items comprised the diet, including: fruits 67 items (81.7%), flowers 3 items (3.7%), insects 3 items (3.7%), seeds 2 items (2.4%), leaves 1 item (1.2

Date 2009
Publication Title Applied Animal Behaviour Science
Volume 117
Issue 1/2
Pages 42-46
ISBN/ISSN 0168-1591
DOI 10.1016/j.applanim.2008.11.002
Language English
Author Address Centro Universitario Metodista Izabela Hendrix, Rua Bahia 220, Funcionarios, 30360-012 Belo Horizonte, Minas Gerais, Brazil. robyoung@pucminas.br robyoung1234@hotmail.com
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Tags
  1. Animal behavior
  2. Animal nutrition
  3. Arthropods
  4. Behavior and behavior mechanisms
  5. Birds
  6. Diets
  7. Digestibility
  8. Estimation
  9. Feces
  10. Feeds
  11. Flowers
  12. Fruits
  13. Insects
  14. Invertebrates
  15. Leaves
  16. peer-reviewed
  17. Research
  18. seeds
  19. Studies
  20. taxonomy
  21. urban areas
  22. urban population
  23. Wild animals
  24. Zoology
Badges
  1. peer-reviewed