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ON THE MORE IMPORTANT ADDITIONS TO OUR 

 KNOWLEDGE OF BRITISH BIRDS SINCE 1899. 



BY 



H. F. WITHERBY and M. F. TICEHURST. 

 Part XVII. 



[Continued from page 270.) 

 BLACK TERN Hydrochelidon nigra (L.). S. page 633. 



SciLLY Isles. — Seen every now and then on the pools of 

 Tresco in immature plumage in autumn, and sometimes in 

 August. Seven were seen on St. Mary's on April 10th, 1903. 

 and four at Tresco on April 26th, 1905 (J. Clark and F. R. 

 Rodd, Zool, 1906, p. 342). 



Cornwall. — A flock of twenty-five to thirty seen first on 

 April 19th, 1901, frequented Marazion Marsh, near Penzance, 

 for some days (A. W. H. Harvey, t.c, 1901, p. 188). Until 

 the last few years, rarely recorded in spring, but since 1900 it 

 has been observed every year in April (J. Clark and F. R. 

 Rodd, t.c, 1906, p. 342). 



Hampshire. — Two immature birds were shot near Ringwood 

 in August, 1905 (G. B. Corbin, t.c, 1905, p. 394). 



Oxfordshire. — Mr. O. V. Aplin considers it may be an 

 annual visitor to the Thames in this county [t.c, 1903, p. 453). 

 One was seen on June 26th, 1903, near Bampton (O. V. Aphn, 

 /.c, 1905, p. 449). One was seen at Oxford on June 11th, 

 1904 [id., t.c, 1906, p. 447). 



Derby. — One was killed at Etwell in the late summer of 

 1900 (F. C. R. Jourdain, i.e., 1902, p. 455), and another at 

 Aston Hall on August 27th, 1908 (id. in litt.). 



Cheshire. — Three in breeding plumage were seen at 

 Bud worth Mere on June 4th, 1900, and an immature bird was 

 seen there on September 6th, 1903, and others on August 19th 

 and 26th, 1905 (F. S. Graves, t.c, 1901, p. 188; C. Oldham, 

 i.e., 1903, p. 393, 1905, p. 393). 



Breconshire. — Two were shot on Llangorse Lake in 1889 

 (E. Cambridge Phillips, B. of Brecon, p. 134). 



North Wales. — Somewhat rare ; met with chiefly on the 

 estuaries (H. E. Forrest, Vert. F. N. Wales, p. 369). 



Isle of Man. — An immature specimen was shot on October 

 15th, 1903, on Langness (P. G. Ralfe, Zool., 1903, p. 461). 



Yorkshire. — Not uncommon in spring and autumn (T. H. 

 Nelson, B. of Yorks, p. 648). 



