. Gli uccelli dello Yorkshire: Essendo un resoconto storico della avi-fauna della contea. Ad ha fatto il suo ultimo pasto di aRedshank, che era stato inghiottito intero; un altro, al Teesmouth, ha disgordato non meno di sei aringhe di dimensioni normali, due essendo abbastanza fresche; j^et un altro, un uccello immaturo chiledat Bridlington, nel gennaio 1895, aveva nel suo stomaco un LittleAuk, che era così leggermente danneggiato che era preservato da un tassidermista {Nat. 1895, pag. 121). Come le due specie precedenti, si nota che questo tempo instormito passa lungo la costa in quegli strani spostamenti di gabbiani che sono così poco sotto

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. The birds of Yorkshire : being a historical account of the avi-fauna of the County . ad made its last meal of aRedshank, that had been swallowed whole; another, at theTeesmouth, disgorged no fewer than six full-sized herrings, two being quite fresh ; j^et another, an immature bird killedat Bridlington, in January 1895, had in its stomach a LittleAuk, which was so slightly damaged that it was preservedby a taxidermist {Nat. 1895, p. 121). Like the two preceding species, this one is noticed instormy weather passing along the coast in those strange move-ments of Gulls which are so little understood ; sometimesfor several days together they may be noticed in small bodies, composed of both young and adults, their powerful pinionsenabling them to overcome the force of the fiercest gales.On 23rd October 1881, and for several days previously, withstrong easterly gales, there was a great passage of maturebirds at Redcar, as many as a hundred going by to the north-west in the course of one day ; a more extensive migrationthan had been known for many years (Third Migration Report, . Kettleness; the nesting place of the Herring and Black-backed Gulls. Fniiii a f>(iiii/iii^- by V. Udod/iiiusc. Sec page 683. GLAUCOUS GULL. 685 p. 36). Another strong migration took place on 17th October1898, with a north-east gale. In spring also this gull isnoticed moving northward at the same time as the LesserBlack-back is observed on passage towards the nesting grounds, although, as is well known, there is no breeding station of thisbird on the east coast. The late J. Cordeauxs remarks as toits former nesting at Flamborough {Zool. 1864, p. 9247) arenot supported by any evidence that I am aware of. The Great Black-back is not so common as some othersof its genus away from the coast, but has been met with inthe south and centre of the West Riding, chiefly on sheets offresh water, and occasionally occurs in the valleys of the Aire, Nidd, Ure, Swale, and Tees. Individuals vary greatly in size ; I

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• bookcentury1900
• bookdecade1900