NOTES. 241 



B.B., No. 30,975, marked by Messrs. Robinson and 

 Smalley at Ravenglass, Cumberland, on June 25th, 

 1910, as a nestling. Recovered at Backworth, Northum- 

 berland, on December 12th, 1910. Reported by Mr. 

 James Laing. 



A MARKED BLACK-HEADED GULL. 



On November 29th, 1910, I had brought me for inspection 

 an adult Black-headed Gull {Larus ridibundus) , on the right 

 leg of which there was an aluminium ring. This latter I found 

 to be one of those used by the Rossitten " Vogehvarte," No. 

 1201. The bird had been picked up dead near Lowestoft, 

 Suffolk, that morning, it having been killed by flying into some 

 •telegraph-wires during a storm the previous night. On 

 communicating with Dr. Thienemann, the director of the 

 " Vogehvarte," he informs me that this bird was ringed as 

 a nestling at the Rossitten gull-colony on July 16th, 1908. 

 The ring had thus been on the bird two years and four months, 

 and I may add that there was no sign of any injury ivhatsoever 

 to the bird's leg. 



Rossitten is 800 miles a little north of east from Lowestoft. 



Another " Rossitten Gull," which was ringed on the same 

 day as this one, was shot on Breydon Water, ten miles north 

 of "Lowestoft, on October 15th, 1909 {vide Vol. III., p. 220). 



C. B. TiCEHURST. 



THE DOWN -PLUMAGE AND MOUTH-COLORATION 

 OF SOME NESTLING BIRDS. 

 Jackdaw. Corvus monedula. 

 Down. Pale grey. IVIoderate in length. 

 Distribution. In addition to the humeral, ulnar, spinal 

 and femoral tracts described by Mr. A. G. Leigh (Vol. III., 

 p. 154), there are scanty inner supra-orbital tracts. 



Coloration of the Month. Deep orange; flanges, pale 

 lemon-yellow. 



Ring-Ouzel. Tnrdus torquatus. 



Down. Yellowish. Moderately long. Very scanty outer 

 supra-orbital tracts. 



Distributio7i. Inner and outer supra-orbital, occipital, 

 humeral, ulnar and spinal. 



Coloration of the Mouth. Lemon-yellow. (c/. Vol. III., 

 p. 325). 



Grey Wagtail. Motacilla melanope. 



Down. Dusky grey. Moderately long. Very scanty 

 crural and ventral tracts. 



