ICHTHYIAETUS LEUCOGASTER. 
White-bellied Sea-eag'le. 
Falco leucogaster, Lath. Ind. Orn., vol. i. p- 13.—Gmel. Linn., vol. i. p, 157.—Temm. Pl, Col. 49. 
White-bellied Eagle, Lath. Gen. Syn., vol, i. p- 33.—Ib. Gen. Hist., vol. i. p. 242. 
Halaetus leucogaster, Gould, Syn. Birds of Australia, Part ITI. 
sphenurus, Gould, in Proc. of Zool. Soc., Part V. 1837, p. 138.—-Ib. Syn. Birds of Australia, Part ITIL. 
young, 
1 nave little doubt that this noble species of Sea-eagle will be found to extend its range over all those 
portions of the Australian continent that present situations suitable to its peculiar habits. It has been 
observed along the whole southern coast, from Moreton Bay on the east to Swan River ou the west, in- 
cluding ‘Tasmania and all the small islands in Bass’s Straits. It has neither the boldness nor the courage 
of the Wedge-tailed Eagle, Aquila fucosa, whose quarry is frequently the Kangaroo and the Bustard; and 
although, at first sight, its appearance would warrant the supposition that it pursues the same means for 
obtaming living prey as the true Pandion, by the act of submersion, yet I can affirm that this is not the ease, 
and that it never plunges beneath the surface of the water, but depends almost entirely for its subsistence 
upon the dead Cetacea, fish, etc., that may be thrown up by the sea and left on the shore by the receding 
waves ; to which, in all probability, are added living mollusks and other lower marine animals : its peeuliar 
province is cousequently the sea-shore, and it especially delights to take up its abode on the borders of 
small bays and inlets of the sea, and rivers as high as they are influenced by the tide; nevertheless, it is 
to be met with, though more rarely, on the borders of lakes and inland streams, but never in the forests or 
sterile plains of the interior, As if is almost mvariably seen in pairs, it would appear to be permanently 
mated ; each pair inhabiting a particular bay or inlet, to the exclusion of others of the same species. 
Unless disturbed or harassed, the White-bellied Sea-eagle does not shun the abode of man, but becomes 
fearless and familiar. Among the numerous places in which [ observed it was the Cove of Sydney, where 
one or two were daily seen performing their aérial gyrations above the shipping and over the tops of the 
houses: if I mistake not, they were the same pair of birds that found a safe retreat in Elizabeth Bay, 
skirting the property of Alexander Macleay, Esq., and where they might he frequently seen perched on the 
bare limb of a tree by the water’s edge, forming an interesting and ornamental addition to the scene. 
In ‘Tasmania it 1s especially abundant in D’Entrecasteaux Channel, and along the banks of the Derwent 
and the Tamar; and there was scarcely one of the little islets in Bass’s Straits but was inhabited by 
a pair ‘of these birds, which, in these cases, subsisted in a great measure on the Petrels and Penguins, 
which resort there in great numbers to breed, and which are very easily captured, 
With regard to the nidification of the White-bellied Sea-eagle, I could not fail to remark how readily 
the birds accommodate themselves to the different circumstances in which they are placed ; for while on the 
main land they invariably construct their large flat nest on a fork of the most lofty trees, on the islands, 
where not a tree is to be found, it is placed on the flat surface of a large stone, the materials of which it 
is formed bemg twigs and branches of the Barilla, a low shrub which is there plentiful. While traversing 
the woods in Recherche Bay, I observed a nest of this species near the top of a noble stringy bark tree 
(Eucalyptus), the bole of which measured forty-one feet round, and was certainly upwards of 200 feet 
luwh ; this had probably been the site of a nest for many years, being secure even from the attacks of the 
natives, expert as they are at climbing, On a small island, of about forty acres in extent, opposite the 
settlement of Flinders, [ shot a fully-fledged young bird, which was perched upon the cone of a rock; and 
I then, for the first time, discovered my error in characterizing, in the “ Proceedings of the Zoological 
Society of London,” and in my ‘ Synopsis,” the bird in this state as a different species, under the name of 
Haliwetus sphenurus, an error which I take this opportunity to correct. The eggs are almost invariably two 
