( 12G ) 



THE MOULTS OF THE BRITISH PASSERES, 



WITH NOTES ON THE SEQl^ENCE OF THEIR 



PLUMAGES. 



BY 



H. F. WITHERBY. 

 Part VI. 



(Continued from page 18). 



Tree-Pipit and Meadow-Pipit supra, pp. 12-13 correction. 

 Examination of further material shows that in the moult 

 from the Juvenile to First winter the median and inner greater 

 wing-coverts and three innermost secondaries are, at all 

 events sometimes, moulted, and this may be the rule, although 

 in the large series I previously examined none were moulting 

 these parts. The central pair of tail-feathers are also occasion- 

 ally moulted. It may be that the moult in the Red-throated 

 Pipit is similar, but I have not seen any specimens showing 

 moult in these parts. 



Family Certhiid^. 



The members of this family, belonging to two distinct 

 genera, differ in their moults, in that the adult Tree-Creeper 

 have but one moult in autumn, while the Wall-Creeper moults 

 the body-feathers also in spring. 



British Tree-Creeper (Certhia f. brittanica). 



Adults. — Complete moult from August to October. No 

 moult in spring, and abrasion has no noticeable effect. There 

 is no sexual difference. 



Juvenile. — Like the adults, but the uj)per-parts with 

 larger pale centres to the feathers, giving it a more spotted 

 appearance. The under-parts are duller and not so silvery 

 as the adult. 



First winter. — The juvenile body-feathers, wing-coverts 

 and innermost secondaries are moulted from August to 

 October, but not the primary-coverts, tail-feathers, nor the 

 rest of the wing-feathers. After this moult the bird is like 

 the adult. 



Wall-Creeper (Tichodroma muraria). 



Adults. — Complete moult in August or September, or 

 even as late as November. In F'ebruary or March there is 



