Crows (Corvus corone ssp.) check contingency in a mirror yet fail the mirror-mark test.
2020 ◽
Vol 134
(2)
◽
pp. 158-169
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2020 ◽
Vol 134
(4)
◽
pp. 372-378
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2014 ◽
Vol 3
(1)
◽
pp. 260-270
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