Cricket has always been infatuated with the night. Stars. Campfires. Stories passed down centuries. Campfire songs. Togetherness.
He was raised in a flock of Kenku and learned many important words and phrases to keep safe. Words and phrases passed down for years upon years. Generation after generation, with no taint of time.
When he reached adulthood, he took up the mantle as a Watcher. A guardian of the flock that makes sure they keep out of trouble. Staying up at night, sleeping throughout the day. Watchful.
This helped him learn about different calls from different creatures they would hear or run into. Cricket would make the sound of creatures he spots or hears, to warn of the threat. Sometimes he'll mistake specific creatures that were just inconveniences as threats.
Eventually Cricket left his flock to get stronger so he could return to them, and be able to protect them. While he was working with a city Guard, he learned that his flock was wiped out and scattered. No more home to return to, he stayed with the Guards.
While he was with the Guards, he was so in-tune with keeping watch and warning people proper that he was awarded a Sentinel Shield by the Guard Captain. This was impactful to the Kenku and he kept the shield, and decorates it with feathers like his clothing.
While the Kenku was with the guard, he saw something shocking in the Temple. Twilight Clerics. They achieved something he has always wanted: flight. To actually experience the wind in his wings.
A new goal in mind, Cricket vowed himself to Helm. The Protector. The Watcher. With him starting his devotion, he was granted powers by the Domain. Cricket left the city guard to learn more, to spread his wings, and find a new flock to protect.