446 
Rev. F. C. R. Jourdain on the 
widely distributed. Clutches of from six to eight eggs may 
be found from May 11 to 28, according to elevation. 
Average size of 23 eggs, 15*18x11*88 mm. ; max. 16x12 
and 15 - 2x 12*3, min. 14*3 x 12*3 and 15 x 11*4. 
47. Parus ater sardus Kleinsehm. Corsican Coal-Tit. 
Parus sardus Kleinschmidt, Orn. Monatsber. xi. p. 186 
(1903—Sardinia). 
The material at present available seems insufficient to 
decide the status of the Corsican Coal-Tit. Wharton, 
Whitehead, Playne, Backhouse, and I only met with it in the 
mountain forests and saw none on the low ground. Parrot, 
however, found it not rare near the Gulf of Ajaccio in 
January and February, and the specimens obtained by him 
appear to be smaller and shorter-winged than typical P. ater 
and apparently belong to the form P. ater sardus. Two 
specimens from Vizzavona and A'itone are, however, longer- 
winged, and, as already pointed out by Hartert (Vog. pal. 
Fauna, i. p. 358), the Corsican mountain birds appear to 
belong to another race. A nest found by me among the 
roots of a pine contained six much incubated eggs on May 27 : 
other pairs were building in stumps at over 3000 ft. alt. on 
May 13 and 26. Average size of six eggs, 15*5 x 12*5 mm.; 
max. 15*9 x 12 6, min. 15*3 x 12 6 and 15 4 x 12*3. 
48. iEGiTHALUs caudatus tyrrhenicus Parr. Corsican 
Long-tailed Tit. 
JEgithalus caudatus tyrrhenicus Parrot, Orn. Jalirb. xxi. 
p. 155 (1910—Corsica). 
Whether the Corsican Long-tailed Tit is really entitled 
to separation from AEh caudatus irbii is still a somewhat 
open question, for Dr. Parrot and Dr. Schiebel had only 
Italian specimens for comparison, and, as I have pointed out 
already *, the Italian form, JE. caudatus italice , is easily 
distinguishable from the Spanish race. The differences 
between Corsican and Spanish birds are not nearly so 
apparent, but I have only been able to examine a few 
Bull. B. O. C. xxvii. p. 39. 
