1580.— Head of Toucan, 



15*9.— Internal Structure of Beak and Head of Toucan. 



'..'"$. -Head and Tongue of Toucan. 



1585.— Group of Toi 



1583 — Upper surface f" Toucan's Tongue. 



1584, -Foot of Toucan. 



No. 45. 



[THE MUSEUM OF ANIMATED NATURE. 



81.— Heads of Rook and Crow. 



353 



