104 INDEX-CATALOGUE OF THE BIRDS 



Case 



No. 3 (right). Male, young. First plumage. 



Found dead at Hebburn Reservoir, Aug., 1876. 



,, 4 (lower centre). Downy state. 



A few miles west of Newcastle, May, 1873. 



Presented by Thos. Thompson, Esq. 



,, 5 (front centre). Downy state. 



,, 6 (front left). Mature. Monkseaton, Jan. 2nd, 1895. 



Stuffed by J. Jackson. Presented by John Duncan. 



49. Black-headed Gull. 



No. 1 (flying). Male, immature. 



Tynemouth, Jan. 18th, 1892. 

 Presented by John Duncan. 

 ,, 2 (centre). Downy state. Throe young. 



Hallington Reservoir, June 10th, 1891. 

 Presented by E. 0. Peid, Esq. 

 ,, 3 (left). Immature. First plumage changing. 



Whitley, August 31st, 1893. 

 Presented by John Duncan. 

 „ 4 (right). Male, mature. April 27tb, 1894. 



Stuffed by J. Jackson. Presented by John Duncan. 



Genus. STERNA. 



50. Caspian Tern. Sterna Caspia, Pallas. 

 No. 1 (left). Mature. Summer plumage. 



Gull-billed Tern. Sterna Anglica, Montague. 

 No. 2 (rigbt). Young, changing from downy state. 



51. Sandwich Tern. Sterna Cantiaca, Gmelin. 

 No. 1 (hind left). Mature. Summer plumage. 



,, 2 (upper). Young. First plumage. 



Carnoustie, Forfar. 

 Presented by J. G. Millais, Esq. 

 ,, 3 (right). Mature. Changing into winter plumage. 

 Northumberland Coast, Aug. 8th, 1882. 



Presented by E. 0. Reid, Esq. 

 ,, 4 (front left). Young. Downy state. 



