Hello @John_Harshman. Given your expertise in avian phylogeneticts, I would like your informed opinion on the development of birds following the K-Pg mass extinction. My understanding is that only a few bird species survived and rapidly diversified post K-Pg.
Genesis 1:20-22 “… let birds fly above the earth across the vault of the sky… So God created… every winged bird according to its kind… let the birds increase on the earth.”
From my perspective I am exploring how the 5th Day of Creation corresponds to the time between the K-Pg extinction and the O-E extinction, a thought triggered in part by this article about the Explosive Radiation of Bird Species After the Dinosaur Demise.
My questions for you, in reference for Genesis 1 are not related to how you interpret the text (that’s for other experts), but rather the scientific information.
Was there a mass extinction of birds at the K-Pg followed by a mass diversification and repopulation of the earth?
Are the majority of modern flying birds post-K-Pg species?
Did most genera of modern flying birds evolve between the K-Pg and the Eocene-Oligocene boundary (i.e. can it be said there was an early and rapid diversification)?
Did non-flying ratite species make it through the K-Pg with significantly and comparatively less extinction than flying species?
Any idea on how many species of flying birds survived the K-Pg and went on to be the ancestors of modern bird species?
Thanks for any insight you can provide.