LIST OF ENGRAVINGS ON WOOD.
. Page
1. Digestive Organs of Pelecanus Americanus, . One-thircl size* 99
2. Sternum of J'elccanm Americanus, . Rather lees than,half size, 102
3. Stomach and proventriculus of Plotus Anhinga, . Full size, 159
•1. Trachea and stomach oi'Plata lea. Ajaja, . . Ilalf size, 197
a. Stomach and proventriculus of Mhynchops nigra, . Full size, 211
6'. Stomach, proventriculus, and intestinei.qf Sula alba, One-third size, 239
7. Stomacli and (Esophagus of Ardea virescens, . Full size, 279
8 Stomach and proventriculus of Charmlrim helveticus, ... 285
9, Stomach and proventriculus of Scolopax novelioraccnsis, ... 289
10. Digestive organs of Ardea minor, . . . ... 301
11. Digestive organs of Xiria Alle, . . . • ... 307
12. -Stomach .and proventriculus oiJJria 4W<? opened, • ••• 807
13. Cloaca anil cwra o f / I W c , • . • • • ••• 307
14. Digestive organs of Thalassidrtrma ptlagifa, . ... 314
IS] Stomach, pr6®ventficulus, and duofl'enum of Tliaiasndroma
pclagicai'ti. ' ". • • •• • , * -314
16. Stomach and intestines of ThalasMdrqmapelagica, . ... 314
17. Digestive organs and inferior larynx of Anas americana, . ... 343.
18. Digestive organs and part of tracheaof Anas strepera, ... 358
1 9 . a t r i c a p i l l u s , ""''•' • • • •• 881
20. DigestiWJOi-gans'iof ¡Tanagra rubrii, . . v ... 393-
21. BigestiWiOiigans oi JFako cyaneus, • .: . . Half size, 407
22.:I)igestive(Qrg^ns of Pyrrhvla.Envcleafor, , ,, Full size, 420
23. Another view of the. same, , - , • . • , ••• 420
24.' Digestive 'Organs of Mus'eiiiipd'h'eriiiidWs', rkl ' ... 425
Digestive Organs of Troglodytes byerriaHs; ' .-.-•>'< . .... 442
26;. Digestive Organs of Loxialeucoptera, , ¡ ^ . : : ••• 471
27. Digestive: Organs of,^lQqislandic^n i („¡¡¿j,.., ,; ,-. ••• 4^8
28. Digestive Organs of Fqlcofuscus,'. , ... , . • ... , 529
291.' 'Digestive organs of Ararnus scolopaceus, . . Full size, 549
30; Digestivfe! organs of Strive J'unerea, '"'v 1 "' .'" "'... 554
31. Coeca and cloaca of Strixfunerea, i i . . : ... 554
3£,.,Apertuig|0fearof Strfafwterea, , \ , . ; ••••. 554,
33. External ear of Strix Otus, ¡n;',i t,. •
34. C(Ec:a and cloaca of Strix Otivi, ' .. • , ••• 578
35. Digestive organs of Emberiza americana, ".•'" ' ... ' 583
37» J!ail ot Hirundo serrtpennis, • .,,, ; .. .« . • ••• 595
38. Part of outer primary of Hirundo serripennis, . . ... ,595
39] Cicecum and cloaca of Ardea Egretta, • • ••• 606
ORNITHOLOGICAL BIOGRAPHY.
C A N V A S S - B A C K DUCK.
FÜLIGULA VALISNESIANA, STEPHENS.
f'f.ATK CCOi. MALIC AVI) FKMSIK.
• THE range of the celebrated1 Í ) üM Mth the history of which I commence
the fourth volume of my Biographs, may be considered as limited
on the one hand by the mouths of the Mississippi, and 011 the.other by
the: Hudson or North River. • Beyond the latter it is rarelyiséSn.at any
season on our eastern coasts ; an<! this circumstance, conjoined Avitli its
being now and then observed on the upper waters' óf our W estern' Districts,
and its breeding in great numbers^pn the borders of Bear Biver,
ifMeh flows into the salt lake: of Timpanajaz in uppers California, as
well asin the marshes and along the banks of streams in many parts of
the^RdcSy1 "Mountains, induces meW'bélieve tlía'tthe individuals sf this
.species, instead of proceeding along the shores, pass overland towards
tEgir breedaiig grounds, however, far northward they may be situated.
A(5eonling to Dr RICHARDSON, it broods in all parts of the Kur-Coun
tiPMs, from the 50th parallel to ttóir'riib§í%8rthérn limits.
^ j^Vhileij.in our Atlantic Districts, it is found in much greater num-
'».«¡rs on the Chesapeake and the streams that flow into it, than anywhere
else. Indeed it is not more than twenty years since its regular:
appearance and sojourn on the waters óf ffiéSouthern States has been
observed or at least acknowledged. Although at New Orleans, where
i|;:gpes by the name of Canard Ckmil, it luis boon known to the oldest
iluek-shootors nqw alive, from their earliest recollection,, it is not more
than about fifteen yeiars since it began to. rise; fronra'tery low priée tó
two dollars the pair, at whieK il kold'during my visit in March 1837.
vol.. ÍV. A