PL XIII. 



(P.Z.S. 1910. PL XCIII^ 



C 



/ 



^ 



/ 



5a 



5b 



6c 



5b 



5c 





Andre & sleigh. Ltd. 



FEET OF RED GROUSE: (1) NEW WINTER-FEATHERS AND NAILS; (2) FULL WINTER-PLUMAGE 

 (3) (4) (5) and (6) SHOWING STAGES IN MOULTING OF NAILS. 



XIII. Grouse, red type, feet showing winter-plumage. 



Fig. 1, Right foot showing new winter-feathers and new nails ( Xo. 1177). 

 ., 2. Left ft>ot showing full-feathered winter-plumage. 

 Feet of grouse, showing replacement of nails. 



Fig. 3. Right foot (No. 1148) with old nails ready to be shed. 



.. 4 in median vertical section. 



.. 5, Left .. (Xo. 1167). 5rt. old nails : 56. new nails : 5c. shed nails. 

 .. 0. Right .. (\o. 1185) with new feathers and new nails. 



