32 
The Irish Naturalist, February, 1916. 
Icterine Warbler on Migration at Tuskar Light-Station. 
I should like to correct a slight error in regard to the period which 
elapsed between the capture of the two Irish Icterine Warblers now duly 
authenticated by specimens. The period should be fifty -eight years and 
three calendar months, less six days, instead of 59 years as previously 
stated [vide Irish Naturalist, February 1915, p. 42). The first bird was 
secured on June 8th, 1856, The second on September 2nd, 1914. It is 
a matter of great interest that one was obtained at the close of the vernal 
migration, and presumably arrived in this country some time in April or 
May as a vernal migrant, while the other was obtained during the autumn 
migration. 
C, j. Patten. 
University, Sheffield. 
Hawk and Heron. 
One afternoon in the last week of December I was witness of an attack 
made on a Heron by a large Hawk, presumably a Peregrine Falcon, 
although I can claim no certainty as to that. Three times the Hawk 
was seen to stoop, but apparently without the purpose of actually striking 
the Heron. After each swoop, the latter turned and faced its enemy as 
it rose, fleeing again before the next attack. Finally it flew, closely pursued 
by the Hawk, away over a wood, and both were lost to sight, so that the 
probable result of the conflict could only be guessed at, for there seemed 
little hope for the ultimate escape of the poor Heron. During the whole 
time no cry was heard uttered by either bird. 
W. E. Hart. 
Kilderry, Co. Donegal. 
Missel-Thrush on Migration at Tuskar Lighthouse. 
I am indebted to Mr. Glanville, principal lightkeeper, for kindly for- 
warding to me an adult female Missel -Thrush, in splendid plumage and 
condition. He procured the bird as it struck the lantern -glass of Tuskar 
Rock light -station, at 10.30 p.m., on October 31st last. This is the 
first specimen which has come into my hands from Tuskar, and only 
the second since 191 1, i.e., when I commenced investigating the migrations 
of birds at Irish light -stations. I obtained the previous bird as it was 
striking the glass of the lantern of Maidens Rock hght -station, at 1.30 a.m. 
on April 17th, 1914 {Irish Naturalist, May, 1914). The scarcity of this 
species, contrasted with the great frequency of the other Irish Thrushes 
as observed on migration at the above light -stations, is a matter^of 
considerable interest. 
C.^J. Patten. 
The University, Sheffield. 
