V, Report on Birds in Danmark, 1887. 379 



155. Thalassidroma leachi, Temm. — Stör Stormsvale. 

 Sent from the Lights. January: 3d LäsÖ Trindel i; 

 i2th Schultz's Grund i. April: ^jlh Horns Rev i. No- 

 vember: loth LäsÖ Trindel i. December: 4th Läsö 

 Trindel i. 



156. Lestris parasitica, L. — Spidshalet Kjove. 

 One, young female, shot on Skagen, presented in the 

 flesh to the Museum by Mr. Kröyer, September 20th. 



157. Larus marinus, L. — Svartbag. 

 Amager. Young birds as usual. Old birds, singly or 

 two together, January gth, 3oth, October 3oth; October 2d 

 a flock, of about ten. (K.) — Fölleslev. Singly at Vester 

 Lyng in fall. (F.) 



158. Larus argentatus, Brunn. — Havmaage. 

 Fölleslev. Common at Vester Lyng in fall. (F.) — 

 Vordingborg. Not unfrequently met with, but not found 

 breeding. — Lolland. On Hyllekrog its nests are found in 

 considerable numbers. (B.) — Sent from the Lights. Fe- 

 bruary: 2ist Schultz's Grund i. 



159. Larus canus, L. — Stormmaage. 

 Amager. In usual numbers, often in very large flocks. 

 (K.) — Fölleslev. Flocks in the fields and at the coast in 

 fall. (F.) — Lolland. Several times four eggs found in the 

 nests on Hyllekrog. (B.) 



160. Xema ridibundum, L. — Hättemaage. 

 Kjöbenhavn. Breeds. On Sound, January ist and 6th 

 some old and young; i6th and i8th a good many, most 

 old, all white-headed. March 1 5th two young and one old 

 with hood; 27th several old with hood. — October, No- 

 vember, December, several, old and young. (W., H. W.) — 

 Amager. March öth first, a flock of about five; from April 

 3d to August iith frequently seen in smaller or larger 

 flocks. October i6th and 23d, each day a very large flock. 



