50 Patten : Migratory Movements of certain Shore-Birds. 



high water. The beach inside the sand-dunes, i.e., between the 

 sand-hills and the road at Dollymount is composed of soft 

 estuarine mud, thickly top-dressed with slimy green seaweed, 

 and forms a feeding-ground for numbers of * waders ' On the 

 far side of the sand-hills, a charming beach presents itself, 

 where the sands, covered at full tide by the open sea, are ribbed 

 and firm. Some shore-birds, notably the Sanderling, prefer 

 this ground. Here, then, it is seen that within the confines of 

 one area, which, when the tide is out, measures roughly three- 

 miles in length by one in breadth, an excellent natural habitat 

 is afforded. 



Having already incorporated a considerable amount of 

 information in my work on ' The Aquatic Birds of Great Britain 

 and Ireland,' published at the end of the year 1906, it seems 

 unnecessary to overload this paper with statistics ; indeed, 

 to avoid going over old ground, I purpose dealing only with a 

 small number of species, which may be regarded of special 

 interest, because of the increased information which I have been 

 able to secure regarding their movements. 



To give one an idea of the number of different kinds of 

 Limicoline birds alone which are included in the avi-fauna of 

 the North Bull, I here append a complete list, all of which I 

 have observed : — - 



Great Plover {Oedicnemus scolopax) 

 Ringed Plover (Aegialitis hiaticola) 

 Golden Plover {Charadrius 



pliivialis) 

 Grey Plover {Squatavola helvetica)'^ 

 Lapwing {Vanellus vulgaris) 



Purple Sandpiper [Tringa striata) 

 Knot {Tringa canutus) 

 Sanderling {Calidris jirenaria) * 

 Ruff (Machetes pugnax) 

 Common Sandpiper (Totanus 



Turnstone [Strepsilas interpres)* j hypoleucus) 

 Oyster-catcher [Hcematopus 1 Common Redshank {Totanus 



ostralegus) 

 Avocet {Recurvirostra avocetta) 

 Grey Phalarope {Phalaropus 



fulicarius) 

 Jack Snipe {Gallinago gallinula) 

 Common Snipe {Gallinago coelestis) 

 Dunlin {Tringa alpina) 

 Little Stint {Tringa minuta)* 

 Curlew-Sandpiper {Tringa subar- 

 quata) 



Only those species to which an asterisk is suffixed will be 

 dealt with here. 



I do not intend to touch upon Web-footed birds in this 

 paper, but may say in-passing, -that of the orders Anseres and 

 GavicB, large numbers of species are to be found in this vicinity. 



Naturalist, 



calidris) 



Spotted Redshank {Totamis fuscus) 

 Greenshank {Totanus canescens) 

 Bar- tailed Godwit {Limosa lap- 

 ponica) 



Black-tailed Godwit {Limosa 



belgica) 

 Curlew {Numenius arquata) 

 Whimbrel {Numenius phceopus) 



