1. podicipitiform seabird aquatic birds related to the loons
  2. Podicipitiformes grebes
  3. procellariiform seabird large long-winged bird with hooked bill and tubular nostrils that wanders the open seas
  4. Podicipediformes grebes
  5. pelecaniform seabird large fish-eating seabird with four-toed webbed feet
  6. piciform bird any of numerous nonpasserine insectivorous climbing birds usually having strong bills for boring wood
  7. sphenisciform seabird flightless cold-water seabirds: penguins
  8. apodiform bird nonpasserine bird having long wings and weak feet
  9. gaviiform seabird seabirds of the order Gaviiformes
  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. coraciiform bird chiefly short-legged arboreal nonpasserine birds that nest in holes
  12. columbiform bird a cosmopolitan order of land birds having small heads and short legs with four unwebbed toes
  13. anseriform bird chiefly web-footed swimming birds
  14. posthumous birth birth of a child after the father has died
  15. platform bed a bed without springs
  16. Accipitriformes in some classifications an alternative name for the Falconiformes
  17. cuculiform bird birds having zygodactyl feet (except for the touracos)
  18. caprimulgiform bird long-winged nonpasserine birds
  19. Podiceps cristatus large Old World grebe with black ear tufts
  20. Podiceps grisegena large stocky grebe of circumpolar regions having a dark neck

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