[downandout]

The study I quoted was done by the State of California. It's most likely a reliable source.

[ojbyrne]

The study specifically says “domestic” migration.

[downandout]

This entire thread is about migration. I was refuting someone's statement about too many many transplants arriving, when in fact net transplants are negative. Births have nothing to do with that. Most international migration to California is illegal.

[Izkata]

If nothing else, that one doesn't take into account births/deaths and immigration/emigration outside the US.