The Seasons Change: Part 1

The Seasons Change: Part 1 was an event in Pokémon GO part of Autumn Event series featuring autumnal theme and Berries.

Featured Pokémon
These Pokémon were released at the start of the event:

Autumn-themed Pokémon had increased spawn rates in the wild and from Incense or Lure Modules:

These Shiny Pokémon were released at the start of the event: PS Vulpix PS Ninetales

These Pokémon would hatch from 5-km Pokémon Eggs obtained during the event:

These Raid Bosses were available during the event:

Field Research event tasks
These Field Research tasks were available during the event:

Timed Research
The Seasons Change: Part 1 Timed Research was available during the event:

Trivia

 * The event time was originally planned to be October 8 a.m. to October  1 p.m., local time. It was modified to be based on PDT due to overlapping with Fashion Week 2020.
 * The 1/4 Egg hatch distance bonus was unannounced in the official blog post.