. Coloured illustrations of British birds, and their eggs . so deep coloured; the tips of thegreater wing-coverts are ferruginous ; the tips of the tertialsand the sides of the vent have little or no white. The egg figured 319 is that of the Storm Petrel, 19# LARIDF-. NA TA TORES. LA RIDM. PLATE CCCXX FORK-TAILED PETREL. THALASSIDROMA BULLOCKII. The Fork-tailed Petrel, which was distinguished from theStorm Petrel by Mr. Bullock during an excursion for thesake of ornithological information, in the year 1818, is aregular visitant at St. Kilda and other islands of the Hebrides,and it also occurs
. Coloured illustrations of British birds, and their eggs . so deep coloured; the tips of thegreater wing-coverts are ferruginous ; the tips of the tertialsand the sides of the vent have little or no white. The egg figured 319 is that of the Storm Petrel, 19# LARIDF-. NA TA TORES. LA RIDM. PLATE CCCXX FORK-TAILED PETREL. THALASSIDROMA BULLOCKII. The Fork-tailed Petrel, which was distinguished from theStorm Petrel by Mr. Bullock during an excursion for thesake of ornithological information, in the year 1818, is aregular visitant at St. Kilda and other islands of the Hebrides,and it also occurs on many parts of the coasts of England,Wales, and Ireland. On the coast of North America thisbird is common. The habits of the present species resemble those of theforegoing in a great degree. Its flight is performed with stronger strokes of the wings,and consists of more lengthened sweeps. This bird is more shy than the Storm Petrel, and itscall note is different; that of the Fork-tailed Petrel sound-ing like the words pure wit, pure wit! while the Storm. u. I : FORK-TAILED PETREL. 19-3 Petrel expresses itself in the words keckereek-ee, kec-kereck-ee ! This species passes most of its time at sea, flying in pursuitof its favourite food, namely, the insects that float on thesurface of the waves; and occasionally steering its coursein the wake of some vessel, in order to pick up any ac-ceptable refuse that may be thrown overboard, or to takeadvantage of such shelter as its hull may afford during aheavy gale. During the breeding-season, the Fork-tailed Petrels, likethe former species, approach the rocky shores in flocks, andhaving made themselves acquainted with the locality, eachpair chooses a desirable fissure in the rock, or a deep cavityamong the loose stones that lie heaped about; sometimesthe burrow of a rabbit is selected, according to circum-stances. After having made choice of their residence, theyhide during the day time in these sheltered situations,and only leave them
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Keywords: ., bookcentury1800, bookdecade1840, bookidcoloured, booksubjectbirds
