Army ant swarms are found frequently, sometimes attended by Rufous-vented Ground-Cuckoo, and there are many manakin leks right beside the road.
Bird highlights here included streaked flycatcher, white shouldered tanager, crested guan and orange collared manakin.
Next he places the parrots (q.v.), and then the vast assemblage of " Passereaux "- which he declares to be all of one type, even genera like Pipra (manakin, q.v.) and Pitta - and concludes with the somewhat heterogeneous conglomeration of forms, beginning with Cypselus (swift, q.v.), that so many systematists have been accustomed to call Picariae, though to them as a group he assigns no name.