IV'. Report on Birds in Danmark, 1886. 415 



144. Larus marinus, L. — Svartbag. 

 Amager. As usual on the coast throughout the year, 

 most in fall and winter, generally young, never very nu- 

 merous. Old birds January 3 ist, April i8th, October 24th 

 and 3 ist, December igth; not more than two each time. 

 Flocks of any size consisting of this species alone are very 

 rare; but in the large flocks oi Larus canus ihQvt are often 

 a fevv Larus mariniis. (K.) 



145. Larus argentatus, Brunn. — Havmaage. 

 Viborg. A single one now and then on Viborg So. (F.) 



146. Larus fuscus, L. — Sildemaage. 

 Kjöbenhavn. On Sound close to shore November ist 



one old, 2d two old. (W.) 



147. Larus canus^ L. — Stormmaage. 

 Amager. In usual numbers. (K.) 



Viborg. Often in small flocks on Viborg So and other 

 lakes. (F.) 



A white specimen (female), with a pale brownish tail- 

 bar, shot in Kalvebod Strand in the first days ot January, 

 bought in the flesh by the Zoological Museum. 



148. Rissa tridactyla, L. — Tretaaet Maage. 

 A young female, shot at Skagen October 27th, pre- 

 sented in the flesh to the Zoological Museum by Mr. M. 

 Ancke r.*) 



149. Xema minutum, Pall. — Dvärgmaage. 



Kjöbenhavn. October i8th I watched one for a long 

 time in North Harbour; it was in the characteristic dress 

 of the young bird. It skimmed about over the water, quite 

 low or some feet up, never touching the surface, from its 



*) Specimen mentioned by Collin (Bidrag til Kundskaben om 

 Danmarks Fuglefauna, i888, p. 109), but the year by mistake given 

 as 1887. 



