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@TheBeesearcher Wonder if they experience the size-weight illusion? Some birds seem like they may... https://t.co/pnbs6fdEby
@TheBeesearcher Wonder if they experience the size-weight illusion? Some birds seem like they may... https://t.co/pnbs6fdEby
#4 when jays snap their heads around while holding a nut-they're evaluating nutmeat density to make the best choice https://t.co/YDF9MfXQr1
can someone out there email me this JOURNAL OF ORNITHOLOGY PDF, pretty please? http://t.co/3dKxiDbkGz grrlscientist at gmail
殻を開けずにピーナッツの中身があるかを確かめるにはどうすればいいか?振れば中で音がするか否かで分かる事は人間なら分かるが、どうやら鳥にもこのテクニックを用いて中身の有無や、より重い中身があるさやを選択するものがいるという論文。 http://t.co/VSiJtuCaNU