Was the experiment carried out in Congos, Timnehs, or both?
Neighbourly help: In behavioral experiments #parrots receive metal tags, which they can then exchange for food. If a bird does not receive a tag, the neighbour often passes on its own and thus forgoes its own reward. That is really cool! 
@maxplanckpresspic.twitter.com/FagdLQE1n8
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The team of Auguste von Bayern tested four parrot species belonging to the Psittacoidea superfamily, namely great green macaws (Ara ambiguus), blue-throated macaws (Ara glaucogularis), blue-headed macaws (Primolius couloni) and African grey parrots (Psittacus erithacus)
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Wow! We can learn a lot from parrots.
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this is normal human behaviour as well, all apes do it. greed and resource hoarding is the learnt behaviour~
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The researcher is asking for the metal tag by holding out her hand. Would the parrot also give the metal tag to the other one if the researcher didn't do this?
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For more information, have a look at our press release:https://www.mpg.de/14328111/prosocial-grey-parrots …
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Was it trying to pick up the big metal brace in hopes of exchanging it for a larger amount of food?
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Tweet je nedostupan.
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Has anyone tried to ask the first parrot for the metal tag and check whether he/she still shares it with its partner? The Loro Parque parrots are trained to amuse people. They can ride a bike and it doesn't mean they know what they're doing. It all seems a circus trick to me...
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You indicated that there is no expectation for reciprocation, but is there any reciprocation? Does the second parrot share any food with the other?
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