Dr. Seuss's Sleep Book (37).png
Kingdom: Dr. Seuss Animalia
Kind: Birds
Overclass: {{{Overclass}}}
Class: Big billed birds
Order: Thickbills
Family: Big Thickbills,Small Thickbills
Genus: Biffer-Baum Birds and Pelfs

for the Thick-Billed Bird, See Biffer-Buam Birds.

List of the Thickbills

Big Thickbills(Biffer)

Small Thckbills(Pelfus)

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