HERTFORDSHIRE ORNITHOLOGY. 
29 
Gannet.— Sula bassana (1884) (R.). 
Little Bittern.— Ardetta minuta (1884). 
Glossy Ibis.— Plegadis falcinellus (1881). 
Bean-Goose.— Anser segetum (1881). 
Whooper Swan.— Cygnus musicus (1886). 
Garganey.— Querquedula circia (1884). 
Scaup.— Fuligula marila (1880). 
Common Scoter. — CEdemia nigra (1881). 
Velvet Scoter.— CE. fusca. 
Great Bustard.— Otis tarda. 
Grey Plover. — Squatarola Helvetica (1885 and 1887). 
Kedshank.— Totanus calidris (1885) (R.). 
"Whimbrel.— Numenius phceopus (1881) (R.). 
Arctic Skua.— Stercorarius erepidatus (1881). 
Guillemot.— JJria troile (1882). 
Storm Petrel.— Procellaria pelagica (1881). 
Birds recorded three times. 
Dipper.— Cinclus aquaticus (R.). 
Bearded Tit. —Panurus biarmicus (R.). 
Golden Oriole.— Oriolus galbula. 
Twite. —Linota flavirostris. 
Little Owl.— Athene noctua. 
Honey-Buzzard. —Pernis apivorus. 
Polish Swan. —Cygnus immutabilis. 
Pintail.— Daftla acuta. 
Oyster-Catcher.— Hcematopus ostralegus (R.). 
Great Snipe.— Gallinago major. 
Slavonian Grebe.— Podicipes auritus. 
Birds recorded four times. 
Merlin. —Falco cesalon (R.). 
Sheldrake.— Tadorna cornuta (R.). 
Goosander.— Mergus merganser. 
Smew.— M. albellus. 
Grey Phalarope.— Phalaropus fulicarius. 
Kittiwake.— Larus tridactyla. 
Of these 74 species, at least 14 (marked R.) must be included in 
the list of birds resident in the British Islands during the whole 
year—mostly, it is true, birds that haunt our coastlines, moorlands, 
and hilly or mountainous districts, and which therefore we only 
expect to hear of in Hertfordshire by means of some of those extra¬ 
ordinary accidents unavoidable by birds at their period of migration, 
or under the stress of storm or hard weather. I do not intend to 
trouble yon with any notice of these, but I have selected two from 
the list of resident British birds that have only once been recorded 
in Hertfordshire to which I should like specially to direct your 
attention, as it seems reasonably certain that an observer primed 
with the information as to where to look and what to look for, 
