Interesting article by the Guardian on how dwindling numbers of the regent honeyeater are affecting the social behaviour of the species and particularly it's singing:
How an endangered Australian songbird is forgetting its love songs
And another on the BBC on the same topic :
Regent...
Research done by Dr. Ruth Bennett at Cornell University (now a research at the Smithsonian's Migratory Bird Center) revealed that males and females of many migratory songbird species occupy different wintering habitats - and that male habitats are being protected at a significantly higher rate...
It's not exactly a zoo, but I'm wondering if anyone here has been to the VINS (Vermont Institute of Natural Science) Nature Center? It was one of my favorite places to visit in Vermont when I was a kid. I've always loved birds and due to Migratory Bird Treaty Act restrictions, most zoos don't...