III. Report on Birds in Danmark in i885. 591 



164. Thalassidroma leachi, Temm. — Stör Stormsvale. 

 One obtained at Fredericia, November 23d, was ac- 

 quired by the Zoological Museum from Mr. E. Jacobsen 

 of that town. 



165. Larus marinus, L. — Svartbag. 



Amager. Young birds in usual numbers. A pair of 

 old birds January i8th and March 27th. (K.) 



Mors. Single individuals offen seen; April gth four 

 together (F.) 



166. Larus argentatus, Brunn. — Havmaage. 

 Mors. Seen on the Limfjord at all seasons; not found 

 breeding. (F.) 



167. Larus fiiscus, L. — Sildemaage. 

 Kjöbenhavn. Single old birds on Sound close to shore 



February 28th and November igth. (W.) 



Rödvig, coast of Stevns, September 20th i88i old 

 bird shot. (A.) 



168. Larus cantis, L. — Stormmaage. 

 Amager. In usual numbers. Does not breed on 



Amager, as far as I know. (K.) 



Mors. Seen on the Limfjord at all seasons; not found 

 breeding. (F.) 



169. Xema ridibundum, L. — Hättemaage. 



Kjöbenhavn. Breeds. On Sound January 2 ist three, 

 old, white-headed ; 27th two young. After that not seen tili 

 March 27th, when many appeared on coast, all with füll 

 hood; thence common. A good many throughout October, 

 most young. November 4th several young. November gth 

 and i5th, December 20th, 25th and 27th single young 

 birds. (W.) 



Amager, east coast, hrst March 27th, a few; thence 

 to middle of July. July i7th many on Saltholm. (K.) 



Vilsted So, near Lögstör, May i7th i885 nearly a 

 thousand pairs; more than half of the eggs examined were 



