How this was made, and who to thank.
Avian Visitors, by Teddy Warner — a live bird collage from your window. Heard Here owes it the core idea: a listening node that hears birds, and a woodblock-style illustration for every species, generated from references rather than photographed. Teddy’s project is open source on GitHub — go build your own.
Every illustration is generated from openly-licensed reference photos — per-photo credits are on the image-credits page.
These projects are free / open-source software, used with gratitude under their respective licenses (MIT, Apache-2.0, BSD, and others).