Experimental evidence of contagious yawning in budgerigars (Melopsittacus undulatus)
Crossref DOI link: https://doi.org/10.1007/s10071-015-0873-1
Published Online: 2015-05-27
Published Print: 2015-09
Update policy: https://doi.org/10.1007/springer_crossmark_policy
Gallup, Andrew C.
Swartwood, Lexington
Militello, Janine
Sackett, Serena
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