The Birds of Pembrokeshire. 55 
the work of incubation. When they have young ones they are 
not to be deterred from their nests, nor will they—even if fired 
upon—desert their offspring. On one occasion, I remember my 
father and myself firing at a pair of these birds, and the female 
returned to the nest almost immediately. We repeated this 
three times before we succeeded in getting her. In almost 
every instance where I observed a nest of this fine bird the 
following birds have had nests in the immediate vicinity, that is 
within roo or 150 yards:—The Guillemot and Razorbill, in 
immense numbers, within a few feet, Puffins, the Kestrel, Raven, 
Carrion Crow, Jackdaw, Red-legged Crow, Great Black- 
backed Gull, one nest; Lesser Black-backed Gull, several 
nests; Herring-Gull, common; Kittiwakes, in thousands ; 
Common and Green Cormorants, Swifts and Sand-Martins. 
And yet none of them showed any signs of alarm at the 
approach of so formidable a foe. I do not recollect a nest 
where the Herring-Gulls, Guillemots, Razorbills, and Puffins 
were not abundant. The old birds ‘give you plenty of notice, 
by their harsh cry, when you are in the immediate vicinity of 
their nest, and it is not difficult to find the spot selected, the 
same old arched cavity being occupied every year. In one in- 
stance eleven pairs of Herons were breeding on the ledges of 
the rocks, within 150 yards of the nest of the Peregrine 
Falcon.” Mr. Charles Jefferys, of ‘Tenby, informs us that the 
Peregrine still nests yearly below Lydstep, and also in the 
neighbourhood of the Stacks. 
HOBBY, Fuxlco subbuteo.—A summer visitor; rare; also seen in 
autumn when on passage. There are but few records of the 
Hobby, but it has probably sometimes occurred undetected. 
Sir Hugh Owen saw one at Goodwick in 1871, and writes to 
us: ‘Can’t mistake a Hobby with his black-brown back, 
cream-coloured breast, and great length of wing, like a gigantic 
Swift.” One shot at Dale, October 3rd, 1888, was brought to 
Jeffreys, the bird-stuffer, in Haverfordwest ; another, at about 
the same date, was obtained at the Rhysgwyllt, Letterston. 
