135 
404 Purrrnus MAJOR .. . eS eV olenVic Bl Neer 
Great SHEARWATER. 
A bird which almost yearly visits the seas of the Land’s End. 
405. Purrinus ANcLonRUM . .. . . . Vol. V. Pl. LXXXIV. 
Manx SHEARWATER. 
Breeds commonly on one or more of the Scilly Islands ; and, as it 
is also found here in winter, it may be considered a resident species. 
Genus /ESTRELATA. 
406. AEsTRELATA HESITATA,. 
Capped Petrel. 
Has once been taken in England. 
Genus THALASSIDROMA. 
A genus in which Vigors and others have placed the smaller 
members of the Procellaride—Storm-Petrels. In the British seas 
we have two breeding species, and a third looks in upon us now and 
then when it has crossed the Atlantic to our side of the globe. 
407. THanasstpRoMA LEacnir . . . . .. Vol. V. Pl. LXXXV. 
Fork-TAILED STORM-PETREL. 
Breeds in the Outer Hebrides, and frequently found dead on 
inland properties, apparently from exhaustion, from the exertion of 
crossing overland from sea to sea. 
408. THALASSIDROMA PELAGICA . . . . Vol. V. Pl. LXXXVI. 
SrorM-PErREL. 
This little sprite of the waters is known to breed on many parts 
of our western coasts from the Scilly Isles to the Orkneys, and on 
some of the rocky islets of the west coast of Scotland. 
09. THaLAsstpRroMA BULWERI. 
Bulwer’s Petrel. 
This bird, which inhabits Madeira, sometimes visits our seas, 
and by Yarrell and others has been included in our avifauna. 
