1. sphenisciform seabird flightless cold-water seabirds: penguins
  2. Sphenisciformes penguins
  3. gaviiform seabird seabirds of the order Gaviiformes
  4. pelecaniform seabird large fish-eating seabird with four-toed webbed feet
  5. piciform bird any of numerous nonpasserine insectivorous climbing birds usually having strong bills for boring wood
  6. podicipitiform seabird aquatic birds related to the loons
  7. procellariiform seabird large long-winged bird with hooked bill and tubular nostrils that wanders the open seas
  8. coraciiform bird chiefly short-legged arboreal nonpasserine birds that nest in holes
  9. anseriform bird chiefly web-footed swimming birds
  10. passeriform bird perching birds mostly small and living near the ground with feet having 4 toes arranged to allow for gripping the perch; most are songbirds; hatchlings are helpless
  11. apodiform bird nonpasserine bird having long wings and weak feet
  12. henceforward from this time forth; from now on
  13. genus Formicarius type genus of the Formicariidae
  14. columbiform bird a cosmopolitan order of land birds having small heads and short legs with four unwebbed toes
  15. cuculiform bird birds having zygodactyl feet (except for the touracos)
  16. gallinaceous bird heavy-bodied largely ground-feeding domestic or game birds
  17. vena cerebrum superior a cerebral vein that drains the dorsal convexity of the cerebral hemisphere and empties into the cavernous sinus
  18. genus Forsythia forsythia
  19. Psittaciformes an order of birds including parrots and amazons and cockatoos and lorikeets and lories and macaws and parakeets
  20. Ciconiiformes order of chiefly tropical marsh-dwelling fish-eating wading birds with long legs and bills and (except for flamingos) unwebbed feet: herons; storks; spoonbills; flamingos; ibises

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