1. Threatening or foreshadowing evil or tragic developments
   - baleful, forbidding, menacing, minatory, ominous, sinister, threatening

See also: alarming

• bird louse
• bird of Jove
• bird of Juno
• bird of Minerva
• bird of night
• bird of paradise
• bird of passage
• bird of prey
• Bird Parker
• bird pepper
• bird sanctuary
• bird shot
• 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