Of course most of us know that bird populations are shrinking. What is so
significant and interesting here is that Evolution could be documented in
such a tiny incremental way. Almost unbelievable but the evidence that they
gathered seems incontrovertible.
Sorry in spite of myself I used the word Evolution when perhaps I should
have said adaptation but only because evolution is sometimes confused with
speciation which is not involved here.
Bob obrien Carver Oregon
On Saturday, December 21, 2019, Robert O'Brien <baro@xxxxxxx> wrote:
They do. An amazing study
https://michigantoday.umich.edu/2019/12/19/migratory-birds-s
hrinking-as-climate-warms/
