Like others, I very much enjoyed this puzzle. It took a while to recognise what the set was but unless I've made a mistake somewhere it seems to me that eXtent has included the home of a famous late parrot, and omitted one of the larger members of this group. The one answer I'm not 100% sure of is 11 across - simply because I cannot for the life of me parse it - though I have all the cross-checking letters.