Hi Roelant ! If you go to Marajo you will se the Savanah Yellow Crown Amazon Parrot , Amazona ochrocephala xhantolaema, The Marajo Parrot (Huge yellow head). A giant Amazon that eat Mauritia Palm fruits ! A different subspecie from the continent, Amazona ochrocephala ochrocephala (only crown is yellow)smaller than Marajo Parrot. In South Amazonia, in Peru , Bolivia, Acre (in Brazil) the subspecie is Amazona ochrocephala nattereri (bluish crow with almost no yellow), smaller bird.
Really hope to encounter xhantolaema. Recent studies say they are more close to Amazona aestiva which makes sense to me.
I like the species. To little is really known about it. They are said to occur on the mainland north of Marajo as well. What’s your opinion?