The cavity is in a huge Eucalyptus tree where a limb “ripped out” about 20 years ago, pulling some of the inside of the tree with it. It is at least 2 feet deep and 18″ across with more room off to the back left. It is also hollow above (sometimes adults or chicks go up there), but we do not know how far up it goes.
It is about 40 feet up and we have a permanent ladder installed to make frequent climbs efficient. In theory, predators such as snakes or raccoons can enter the cavity, but to date viewers have not seen anything attempt to attack the eggs or chicks. Viewers have seen an occasional hummingbird flutter in.
Cavity location : 33°37’46.18?N,117°33’15.12?W in Google Earth or most other internet mapping sites.