Aves Internacionales
This was a network of researchers sharing methods and funding to study migratory birds (mostly Tyrannus but sometimes flycatchers from other genera too) across the New World. It is no longer operational.
Check out our past work here.
Check out TyrannusNet for the research that focused only on the Tyrannus genus.
We recently shifted to studying Turdidae (robins) because that taxa has a near global distribution. Studying Turdidae allows for a broader hypothesis-testing platform. I will add a page for the Turdiae group when it is more fully developed.