https://blog.siggraph.org/2015/02/evolution-wow.html/birdly/
birdly - ACM SIGGRAPH Blog
Feb 19, 2015 - Birdly at Real-Time Live SIGGRAPH 2014
acm siggraphbirdlyblog
https://sunbird.tv/project/birdly-australia/
Birdly Australia - Sunbird Images
birdlyaustraliasunbirdimages