Shiny Spearow in Pokemon GO was only recently released earlier this year as part of the Kanto Celebration event.
Longtime fans will know Spearow from the Pokemon Indigo League television series. Within the first episode, Ash and his new companion, Pikachu, are attacked by a flock after the young trainer injures one of its members. Pikachu saves them both—exhausting itself in the process.
Fortunately, trainers under Niantic Labs' direction won't have to worry about such things.
Shiny Spearow Pokemon GO
Shiny Pokemon have a 450:1 chance of spawning in any given encounter—meaning each spawn only has a 0.22% chance to be the alternate palette. There's no guarantee that any spawn will be shiny, so the only way trainers can artificially increase their chances is to prompt as many run-ins with that Pokemon as possible.
Spearow's normal variant was released alongside the launch of the game in early July 2016 while its shiny variant didn't see a release until February 2021. Some have affectionately referred to it as Pidgey's more aggressive cousin.
When spawned as shiny, Spearow takes on a bright yellow hue. Its red wings, pink legs and beak turn a neon-adjacent yellow. Its abdomen takes on a slightly more golden look and its typically chestnut brown head feathers become yellow-green.
As a normal and flying type, it's most commonly found during windy days, in open fields or wooded areas such as local parks. In the past, it has been known to hatch from 2 km eggs.
Also known as the "Tiny Bird" Pokemon, Spearow are best known for extremely loud cries to alert other members of their flock to danger. Its PokeDex number is 21. Trainers can evolve their Spearow into a Fearow using 50 candies.