The Pokémon Go Field Research Task rewards are changing for May and June, with Suicune, Entei, Raikou, Regice, Registeel, and Regirock leaving the pool. Latios and Latias will join Ho-Oh and Lugia on May 1 at 4 p.m. ET until the end of June.
This means that once players complete seven days’ worth of Field Research, they’ll be able to encounter a Ho-Oh, Lugia, Latios, or Latias. There is no confirmation of whether the latter two can be caught Shiny (the way Ho-Oh and Lugia can be), but since their Shiny forms have been released, it’s likely they’re fair game.
Both Latias and Latios were released for a limited week in February and April, respectively, each with their Shiny form appearing for the first time. Both of these Pokémon are solid dragon-type attackers, so stocking up on a few is a good idea.
The Legendary dogs, Suicune, Entei, and Raikou, were available as potential Research Breakthrough rewards for five months, and were guaranteed rewards from the months before that. The dogs are not particularly good attackers, and Suicune was known to plague many trainers who were after other Legendaries. Goodbye, dogs. You won’t be missed.
With this shift in Research Breakthrough rewards also come some changes to potential egg hatches. The Pokémon Go announcement post notes that starting April 26 at 4 p.m. ET, players will be seeing more Pokémon from the fourth generation in eggs, including Bonsly, Shinx, Combee, and Buizel.