1. Nervous, impatient or restless

Derived forms: twitchiest, twitchier

• bird vetch
• bird watcher
• bird's eye view
• bird's foot
• bird's foot clover
• bird's foot trefoil
• bird's nest
• bird's nest fern
• bird's-eye
• bird's-eye bush
• bird's-eye maple
• bird's-foot fern
• bird's-foot violet
• bird's-nest fungus
• bird-footed dinosaur
• bird-on-the-wing
• bird-scarer
• birdbath
• birdbrain
• birdbrained
• birdcage
• birdcage mask
• birdcall
• birder
• birdfeeder