What specific mammalian predator is documented as attempting to plunder Great Kiskadee nests?

Answer

The common marmoset (*Callithrix jacchus*)

The common marmoset is explicitly named as a creature that will attempt to plunder Kiskadee nests, especially when their preferred fruit sources are scarce.

What specific mammalian predator is documented as attempting to plunder Great Kiskadee nests?
birdPredatorKiskadee