DUCKS. 



DUFRENITE. 



minek, U pUoed on the border* of rivers and lakes, and the number 

 of eggs amount* to twelve ; they are whit uh. The bird i* in no 

 request for the Uble. 



The countries of the arctic circle in both world* are the habitations 

 of the Sinew. It it migratory in autumn, but especially iu winter, in 

 England, Holland, France, and as far ai Italy ; rather abundant in 

 Holland on the lake* and marshes. (Temm.) It is seldom seen in 

 Britain except in inclement winters. The species was not observed 

 by Sir John Richardson, but it U noted by him in the tables compiled 

 from the 'Specchio Comparative' as one of the bird* that migrate 

 northward from or through Pennsylvania in spring, and may there- 

 for* be considered as returning to the Fur Countries to breed. Prince 

 Bonaparte notice* it a* rather common in winter, particularly the 

 young, near Rome, and a* very rare and adventitious at Philadelphia. 

 (Specchio Comparative.') The same author, in his ' Geographical and 

 Comparative Lut,' notes it a* occurring in Europe generally and ou 

 the northern and central coasts of America. Dr. Von Siebold and 

 M. Biirger found it in Japan. 



M. Temminck remarks that the Maries, or birds of this sub-family, 

 live upon the waters, where they swim, having generally the whole of 

 the body submerged, and only the head out of the water; but this 

 is certainly not the case with the Smew, as it swims with a very fair 

 proportion of its body above the surface. They dive easily and often, 

 swim with extreme agility ' entre deux eaux', and use their wings to 

 assist them in this sort of natation. They remain long on wing, and 

 fly very swiftly. Their walk i* very vacillating and embarrassed, 

 their legs or feet, as well as those of the Sea-Ducks, being more with- 

 drawn within the abdomen than those of the ducks which have the 

 posterior toe smooth. Their food consist* principally of fish and 

 amphibious animals, and of the first they make great destruction. In 

 temperate climates they are only seen in winter ; their habitual dwell- 

 ing i* in cold countries, where they breed. They are much wilder 

 than the different species of ducks, and have not been domesticated. 

 They moult once a year ; but the old males, like those of the ducks, 

 moult in the spring, whilst the old females and the young moult in 

 the autumn. The young males, before their first or second moult, 

 hardly differ at all from the females. 



The following list of British Anatidtt is made up from the ' Catalogue 

 of the Specimen* of British Animals in the British Museum.' The 

 catalogue of birds in this collection has been drawn up by Mr. Qeorgo 

 Robert Gray. 



Family Analidir. 



Sub-Family I. Fkclroptermec. 



Plectroplcnu. 



P. Gambtntir, the Spur- Winged Goose. 

 Sub-Family II. Anurina. 



Chenalopex. 

 C. jBgyptica, the Egyptian Goose. 



Bernifla. 



1. B. leueoptu, the Bernicle Goose. 

 2. H. Bmta, the Brent-Goose. 



3. B. r*jirllu, the Red-Breasted Goose. 



4. B.Ceuwdcnnt, the Canada Goose. 



Anier. 



1. A.fenu, the Gray-Lag Goose. 



2. A. uyrtum, the Bean-Goose. 



3. A. brachyrlynclHU, the Pink-Footed Goose. 



4. A.frytkroptu, the tod Goose. 



5. A, cyynoiiln, the Chinese Goose. 



Sub-Family III. Ofynina. 



fenu, the Whistling Swan. 



Amrricantu, the American Swan. 

 3. C. alor. the Mute Swan. 



mmntabiiu, the Changeless Swan. 

 6. C. minor, Bewick's Swan. 



Sub-Family IV. Analiiur. 



Tadorna. 

 1. T. nlpamer, the Common Shicldrake. 



Catarla. 

 1. C. ritfiTa, the Ruddy Shieldrake. 



Mar tea. 



1. Jt. Penlopt, the Widgeon. 



2. M. Rumania, the American Widgeon. 



.70. 

 1. I >. afula, the Pintail Duck. 



Antu, 

 1. A. Botduu, the Wild Duck. 



1. Q. mtta, the TeaL 



i Q. Umantala, the Bitnaculated Duck. 



Pteroeytmea. 

 1 . /'. cireia, the Garganey. 



A if. 

 1. A. ipoiun, the Summer-Duck. 



'Matmtu. 



1. C. rfrqwro, the Gad wall. 

 Spaittla. 



1. S. dyptata, the Shoveler. 

 Cairina. 



1. C. motchata, the Muscovy Duck. 

 Sub-Family V. Fuliyulina. 



Urania. 

 1. B. rufina, the Red-Crested Whistling-Duck. 



.</fo. 



1. P. crittaia, the Tufted Duck. 

 2. I', collaru, the Collared Duck. 

 3. P. mania,, the Scaup-Duck. 

 A'yroco. 



1. N. frrina, the Pochard. 



2. A', ferinoida, Pnget's Pochard. 



8. A', leucophthalmvt, the Ferruginous Duck. 

 lula. 



1. C. glaudon, the Golden Eye. 



2. C. hittrionica, the Harlequin-Duck. 



3. C. albeola, the Buffol-lleii.leil-Duck. 



llurelda. 

 1. //. glacvdu, the Long-Tailed Duck. 



uttla. 



1. E. Stelleri, the Western Duck. 

 SomaJeria. 



1. S. mollittima, the Eider-Duck. 



2. S. sjieclabilif, the King's Duck. 



Oidtmia. 



1. O./wco, the Velvet-Scoter. 



2. 0. niyra, the Common Scoter. 



3. tt fertficeUata, the Sui-f-Scoter. 



Sub-Family VI. ifcryina. 

 Mergui. 



1. M. castor, the Goosander. 



2. M. lerrator, the Red- Breasted Merganser. 



3. if. cucuUatut, the Hooded Merganser. 



Mcrgellu*. 

 1. If. alMlut, the Smew. 



Most of the species referred to in the foregoing article may be seen 

 living in the Gardens of the. Zoological Society, Regent's Park. Some 

 years ago on Ornitlml ly w:is furmril in London, and 



obtained penniiuiou to pluce their living collection of birds upon the 

 waters in 8t James's Park. I ,,/,/ in thin collec- 



tion are very numerous ami worthy the attention of the ornithological 

 student. We are indebted to the keeper of the birds for the following 

 list: 



ii y Duck. 

 Hook-Bill,, i Duck. 



vy Duck. 



res Duck. 



Vellow-lli'llr,! Dnek. 

 Carolina Dnek. 

 Castaneous Duck, 

 (iolilen Kye Dnek. 

 Pintail Duck. 



nl. 



:JL 



Shieldnk* 



Common Widgeon. 

 Common TeaL 



belonging to the family 

 same collection. 



DIVK WKKD. [LEMNA.l 



DUDLEY LIMKSTONK, an equivalent term for the Wenlock 

 Limestone of the Silurian system. i.M.J 



DUFKKNITE, a Mineral, occurring in small radiated masses. It* 

 colour is olive or dull green. It is slightly translucent and extremely 

 fusible. The specific gravity is 3'227. It is found at Anglar, near 

 Limoges. The following U an analysis : 



Phosphoric Acid 24 '8 



Protoxide of Iron . . . . ,61 



Peroxide of Manganese .... 9 



Water . . . 16 99'8 



The Black Swan. 

 Bewick's Swan. 

 Hooper-Swan. 

 Common Swan. 

 Common GOOM. 

 Chinese Goose. 

 Egyptian Goose. 

 ut-Qoose. 



Bean-Goose. 

 Canada Goose. 

 Sunlwich Island Goose. 

 Spiir-Winged Goose. 

 Goosander. 

 ''iiiiiii.n Duck. 

 There are also specimens of birds 

 Cotymhidtt in the same collection. 



