ORNITHOLOGICAL REPORT FOR NORFOLK. 125 . 
many “ Casse-noix,” but does not say whether they were thick- 
or thin-billed; in some examples the distinction is not very 
apparent. Swiss examples are, however, stated by M. Ghidimi, 
of Geneva, to have been N.c. macrorhynchus (T. C. 1912, p. 247). 
Here it may not be out of place to reproduce Mr. E. de Selys 
Longchamps’ outlines of the beaks of the two races (‘ Bulletin 
de l’Académie de Bruxelles,’ 1844, p. 298). It may also be well 

land 2, Nucifraga c. macrorhynchus; 3 and 4, N. c. caryocatactes. 
to give his drawing of the Nutcracker’s bifurcated tongue, which 
has been alluded to by the Rev. J. G. Tuck and Mr. Ground 
(ante, pp. 34, 74). Possibly its bifurcation assists the bird in 
extracting the seeds from fir-cones; yet the Crossbill has no 
such help. Immediately beneath the tongue there opens a 
dilatable sac or pouch, which is well described by M. de Sinéty 
in the ‘ Proceedings’ of the French “ Académie des Sciences ” 
(1853, p. 785). M. Sinéty also draws attention to the very 
