. The migration of birds, as observed at Irish lighthouses and lightships including the original reports from 1888-97, now published for the first time, and an analysis of these and of the previously published reports from 1881-87 : together with an appendix giving the measurement sof about 1600 wings . ow. Observations. Specimens. Spring. Autumn. iSpring. Autumn. South Coast, 7 28 1 8 East „ ... 16 70 5 27 North „ ... 9 9 4 2 West „ ... 4 17 9 36 124 10 46 86 MIGRATION OF BIRDS In autumn a decided majority, both of »fche observations andof the specimens, are from stations south of the latitud
. The migration of birds, as observed at Irish lighthouses and lightships including the original reports from 1888-97, now published for the first time, and an analysis of these and of the previously published reports from 1881-87 : together with an appendix giving the measurement sof about 1600 wings . ow. Observations. Specimens. Spring. Autumn. iSpring. Autumn. South Coast, 7 28 1 8 East „ ... 16 70 5 27 North „ ... 9 9 4 2 West „ ... 4 17 9 36 124 10 46 86 MIGRATION OF BIRDS In autumn a decided majority, both of »fche observations andof the specimens, are from stations south of the latitude ofDublin:— South of Dublin, .North „ „ Observations. 74 50 12 19 7 But in spring this is not so :— South of Dublin,North „ „ From this it would appear that if the spring movement be anemigratory one, the Gold-Crest at that season departs by a north-easterly route towards Scotland. A considerable number seemalso to arrive by this route in autumn; for the light-keeper atInnishtrahull remarks (1894 Eeport, p. 406) that we havelarge numbers of Gold-Crests every March and October. Inautumn, however, the largest influx evidently occurs farthersouth. The following map shows the number of specimens from eachlight-station in spring and S 2=:Two specimens forwanled in spring, March 19 to April 4=Four „ „ in autumn, AuRUSt 27 to December 17. ANALYSIS OF REPOllTS, 1881-97 S7 At lanterns, the Gold-Crest appears to be more frequentlycaught alive than killed. In this it presents a contrast to mostof the Warblers, which are oftener killed than caught:— Killed striking, Caught at lanterns, . Found dead, Disabled or exhausted, . Struck,but whether killedor not doubtful. Shot, No details as to how pro-cured, .... SedgeWarbler. 116 3 14 White-throat. 79 6 6 3 11 WillowWren. 36 911 3 0 3 11 Chiff-chaff. 11 3 Gold-Crest. 13 19 Golden-crestedWren. 142 109 82 22 56 It will be seen from these figures that the number of Go
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectbirds, bookyear1900
