wotcher or wotcha/ʹwochə/ interj

• bird-foot
• birdie
• birdlime
• bird-nesting
• bird of paradise
• bird of passage
• bird of prey
• birdseed
• bird's-eye
• bird's-eye view
• bird's-foot
• bird's-foot trefoil
• birdshot
• bird's-nesting
• bird's nest soup
• birds of a feather
• birdstrike
• bird table
• bird-watching
• birefringence
• bireme
• biretta
• biriani
• birk
• birl