H E A 
per mandible there is an orange-coloured fl<in, in 
which the nofrrils are placed ; the eyes are alfo en- 
circled with an orange-coloured fl<in ; the irides 
are hazel-coloured ; and round the noftrils and the 
angles of the mouth there are fome black hairs or 
briftles. A black line paffes from the bill through 
the eye; and from the noftrils proceed white lines 
juft above the eyes, vv'hich bending down the fides 
of the head, unite under the throat; there is alio a 
white mark under each eye : the reft of the head, the 
neck, and the breaft, are of a duflcy brown colour, 
with a fmall admixture of white on the top of the 
head; the back, wings, and tail, are a dufky brown, 
except that the latter has four traniVerfe bars of 
a blackifli colour; and the rump and covert- 
feathers on the upper fide of the tail are white. 
Part of the breaft, the belly, thighs, and the co- 
vert-feathers under the tail, are a reddifli yellow; 
the legs and feet are covered with orange-coloured 
fcales ; and the claws are black. 
The Marfti Hawk is a native of Pennfylvania. 
It frequents the marfhes in the fummer fealon, 
preying on fmall birds, frogs, fnakes, and lizards; 
but it migrates towards the approach of winter. 
Hawk, Indian Brown. This bird is about 
fourteen inches long: the bill is blueifh with a 
black tip; the irides are yellow; the head, back, 
and rump, are brown ; the coverts of the wings are 
brown bordered with white ; and the quill-feathers 
are dufky, edged with light brown. The fore- 
part of the neck, the breaft, and the belly, are 
white, marked with numerous yellow lines of a 
femicircular figure; the tail is a pale brown, tranf- 
verfely marked with four dufky lines; and the legs 
are of a very faint yellow hue. 
HAY. An animal of the monkey kind, about 
the fize of the fpaniel-dog; having a face nearly 
refembling the human, and a belly depending, like 
that of a fow with young. The hair is greyifh; 
the tail is very fhort; and the legs are hairy, and 
furni filed with long claws. This creature is na- 
turally very wild, aftive, and playful ; but, when 
taken and confined, it foon becomes mild and trac- 
table. 
HAY-WORM. A particular fpecies of Worm 
found among hay, with whofe origin and changes 
we are as yet but imperfe6lly acquainted. It is 
about half an inch long, and of a whitifh colour 
fhaded with faint ftripes of a yellowifh brown. It 
has fourteen feet; and pofTeffes other evident marks 
of it's being a real caterpillar. 
HAZLE-HEN. A bird of the gallinaceous 
kind, common in the German woods, and fuppofed 
by many naturalifts to be the attagen of the ancients. 
It is about the fize of a fmall pullet; it's belly is 
white; it's breaft is white, variegated with black; 
it's throat is reddifn ; and below the beak of the 
male there are fome black feathers, by which it 
may be diftinguifiied from the female. The head, 
which is of a greyifti brown colour, has on each 
fide of it a white line; the back and rump are pret- 
tily variegated like thofe of the partridge; the 
fides are of a yellowifh or reddifli brown hue inter- 
mixed with white; the wings and tail are varie- 
gated with black, brown, and white ; but the lat- 
ter has alfo an admixture of red. This bird feeds 
on vegetables ; and it's flefti is much efteemed. 
HEART-SHELL. A genus of Ihells by 
fome authors referred to the peftunculus, or cockle 
kind; but by more modern writers juftly made a 
genus of itfelf. The diftinguifhing chara£lers are 
thcfe: the jChell is bivalve, of a globofe elated 
HEA 
form, deeply fulcated, in fome fpecies imbricated, 
in others prickly, but never auriculated; and al- 
ways bearing a general refemblance to the figure 
of a heart. 
This genus contains feveral very remarkable 
fpecies; one of the moft elegant of which is the 
imbricated Heart-Shell, called by French concho- 
logifts Faitage, or Roof-Shell, from it's refembling 
the rafters of a houfe; another fpecies is denomi- 
nated the Cabbage-Shell, from it's undulations, 
which refemble the garden curled cabbages; and 
to this genus alfo belongs the Noah's Ark Shell. 
HEATH-COCK. An appellation given by 
many authors to the common grous. See Grous. 
Heath-Cock, Ruffed. This very curious 
bird, which was firft figured and defcribed by Ed- 
wards, is nearly of a middle fize between the phea- 
fant and the partridge: the bill is like that of the 
hen, of a brownilh horn-colour; the feathers bend 
forv/ards to the noftrils, which they cover; thole 
on the crown of the head are pretty long, and Ed- 
wards fuppofes that the bird can erecl them like 
a creft at pleafure. The plum.age on the neck, 
which is long, may be either raifed in the form of 
a rufi^, or permitted to lie flat, according to the 
fancy of the fov/1; the head, neck, back, wings, 
and tail, are beautifully variegated with dark and 
light brown, together with a fmall admixture of 
black; the end of the tail is cinereous, and within 
that there is a broad tranfverfe black bar ; the un- 
der-fide of the tail is marked and coloured like the 
upper, except that the fhades are fainter; the in- 
ner covert-feathers of the wings are light brown 
and white, but their infides are cinereous; the plu- 
mage between the back and the wings is orange 
and black, with white tips; tlie throat is a bright 
brown inclining to orange; the breaft, belly, and 
thighs, are white, with a faint tinfture of orange 
and black femilunar fpots on the breaft and fides; 
and the legs are covered down to the feet with 
white filiform feathers. 
This bird fpreads it's tail like the turkey-cock, 
and v/alks with a very ftately formal pace, making 
a noife fomewhat like that of the turkey. But it 
is principally remarkable for the thumping noife 
it makes with it's wings: it will fometimes ftand 
on an old fallen tree, and beginning the ftrokes 
very gradually, will repeat them quicker and 
quicker till they refemble diftant thunder, which 
continues about a minute; and then, after an in- 
terval of fix or feven minutes, it will renew them. 
This found, which may be heard at the diftance of 
half a mile, gives fufficient intimation to fowlers of 
the place of it's retreat. It exercifes this thump- 
ing, during the fpring and autumn, about ten in 
the morning and four in the afternoon. It feeds 
principally on berries and feeds. The female 
hatches twelve or fourteen eggs at a brood; and 
protefts her young till the fucceeding fpring. 
The RufFed Heath-Cock is moft" commonly 
found in the United States of Am.erica, and is 
there called a pheafant. It fhews a peculiar pre- 
dile6lion for a kind of ivy-berry, which is delete- 
rious to feveral other animals. Dr. Brooke of 
Maryland obferves, that it thumps chiefly during 
the fpring, when it's breaft fwells like that of the 
pouting pigeon. Lahontan likewile confirms the 
account of the thumping of this bird in the fol- 
lowing words: *^ I went in company,* fays he, 
* with fome Canadefe, on purpofe to fee that fowl 
flap with it's wings: believe me, this fight is one 
of the greateft curiofities in the vvorld; for it's 
flapping 
