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Counting with Colours? Effect of Colours on the Numerical Abilities of House Crows (Corvus splendens) and Common Myna (Acridotheres tristis)

Rahman NA 1 , Ali Z 2 , Zuharah WF 1 , Fadzly N 3

Affiliations 

  • 1 School of Biological Sciences, Universiti Sains Malaysia, 11800 USM, Pulau Pinang, Malaysia
  • 2 School of Mathematical Sciences, Universiti Sains Malaysia, 11800 USM, Pulau Pinang, Malaysia
  • 3 School of Biological Sciences, Universiti Sains Malaysia, 11800 USM, Pulau Pinang, Malaysia; Centre for Marine and Coastal Studies (CEMACS), Universiti Sains Malaysia, 11800 USM, Pulau Pinang, Malaysia
Trop Life Sci Res, 2016 Aug;27(2):1-12.
PMID: 27688847 MyJurnal DOI: 10.21315/tlsr2016.27.2.1

Abstract

We conducted several aviary experiments to investigate the influence of colours in quantity judgments of two species of birds; house crow (Corvus splendens) and common myna (Acridotheres tristis). Different quantity (in seven different food proportions) of mealworms were presented nonsequentially to all birds using artificially coloured red mealworms, for experiment 1, and using artificially coloured green mealworms, for experiment 2. Both red and green coloured mealworms have no significant effect on house crow's quantity judgments (red:

* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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