If you were hopeful for a return to Pidgey spawns, prepare for disappointment...
From Silph Road reddit...
Quote:
This post is not receiving enough attention for how significant of a change this is, but we believe this is accurate. We are very likely seeing a reduction in Rattata/Pidgey/Weedle/Drowzee spawns. Any travelers who can go out and collect more anecdotal data about your local common species would be appreciated!
Venonat, Eevee, Oddish spawning near me where Pidgey/Rattata/Weedle would be normal.