That colibris may not make it to its vitals passed 7-10 yards.You can shoot coyotes with 22s and bring them down. At 15-20 yards you should be able to headshot most of them with 22lr.
If you've got concerns with neighbors or sound, stick to the Colibris. They're quiet like a pellet gun, but I'd say you have to go for a lung shot in with them. Not sure how good penetration would be through the skull.

