Applecider, I wish the cats were the enemy of the native birds... The reality is that the rats and the Avian Malaria are killing the native birds here! All the introduced species are resistant to the Malaria, so they act as a reservoirs (virus is there) and the mosquitoes (vectors) are transferring this to the native birds (and they have no resistance but some obviously are developing such a resistance, like the Amakihi)... Rats are climbing the trees and attack the nests... I haven't seen cats in the higher mountain forest where the native birds have their last sanctuary (mosquitoes are not present there... usually...) but the rats are there - in numbers!!! I attache a picture (unfortunately had to crop to extend that the nest is out of the frame - just to squeeze it in the Forum, and actually the rats are 3!) of rats standing right under a nest and they DID come from that nest (me, the fool, was expecting to capture a photo of birds there!)!!!