Bon THE JACKSONIAN OOLOGICAL COLLECTION. 
Data Campbell's No. of 
No. Book, Eggs. 
263 It 2 LITTLE BAGLE, 
Nisaetus morphnoides, Gould. 
Set of 2 eggs, taken by C. E. Cowle, at Illamurta, on the Finke River, Central Australia. The 
nest was placed in a tall Eucalypt, and difficult to secure, and was constructed of sticks. The eggs 
were slightly incubated. Taken on 6th March, 1899. The Little Eagle was on the nest when the 
native commenced to climb the tree. We found one nest of this bird in the Clarence River district, 
but after a difficult climb found the eggs just hatching. The nest was placed at the giddy altitude of 
126 feet, in a giant Flooded Eucalypt (Eucalyptus rostrata), the climbing operations being performed by 
my brother, Frank T. A. Jackson. As already stated the eggs were just on the point of hatching, and 
of course they were rendered quite useless as oological specimens. I broke both eggs in halves, and 
preserved the young birds, keeping the shell as a memento of our greatest climb, and probably one of 
the highest of its kind made by any person in Australia. Specimen A. of the pair measured = 2°27 
x 1°76. The find was made by my brother and I on the 27th of August, 1898, near Southgate, 
Clarence River, N.S.W. The eggs of this bird resemble very much those of the Whistling Eagle, so 
great care should be exercised in carefully identifying the birds prior to taking them, otherwise they 
are valueless to a scientific and methodical collection. Specimen A. of set under notice (No. 263) 
measures = 2'25 x 1°77. Specimen B. measures = 2°26 x 1°75. 
2604 9 2 RED GOSHAWK, 
Uvospizias vadiatus, Latham. 
This set of 2 rare eggs was taken by T. Williams, near Emerald, Mackenzie River, Queensland, on 
the 16th of September, 1898. Nest built in large Eucalypt at an altitude of 75 feet. One egg (Speci- 
men A.) was in a very advanced state of incubation, but was successfully emptied of its contents ; it 
measures = 2'23 x 1°72. The other egg (Specimen B.) was an addled specimen, and was easily 
blown. Both eggs have very few markings, but possess dirty brown or nest stain discolorations. 
Specimen B. has one rich reddish-brown dot and a few yellowish-brown smears; it measures = 2°19 
x yiss 
265 21 4 CRESTED HAWKE, 
Baza subcristata, Gould. 
This is the best set of these rare eggs that I have ever taken or seen anywhere. The nest was 
placed in the topmost branches of a lofty Spotted Eucalypt (Eucalyptus maculata) growing on the ridge 
above Harrington Creek, at Lavadia, near Grafton, Clarence River, N.S.W. It was exactly 87 feet 
from the nest to the ground, and W. McEnerny and Frank T. A. Jackson negotiated with the taking 
of the eggs for me on this occasion, which was on the 17th of October, 1897. Inseasons past we have 
taken several clutches of these much prized eggs, but never before did we take a set of four. Itisa 
lovely clutch, the eggs are thickly marked all over with light yellowish-brown nest-like stains, and 
specimens A. and B, have a few dark brown markings, and are rounder types than those of C. and D. 
We have never experienced any trouble while robbing the nests of this beautiful species, as the Hawks 
are very quiet, and fly toa tree a few hundred yards away, and there sit quite contentedly, and return 
to the nest again after our climbing operations are finished. This bird I have seen frequently fall down 
on top of the Box Eucalyptus saplings (Eucalyptus hemiphloia) with outspread wings, and there remain 
in that position eating grubs, beetles, etc., from the foliage ; we have often seen them in the scrubs in 
the Clarence River district, but not their nests ; they prefer getting well into the heart of the forest to 
breed. In nine years we found eleven of these nests, and were fortunate in getting eggs from six of 
them, and all in big trees. This set of 4 was taken by W. McEnerny, Frank, and Sid. W. Jackson. 
The first nest and eggs which we found of this handsome species was on the 22nd of October, 1893, 
and the nest was placed, at an altitude of nearly go feet, in a Spotted Eucalypt, on a stony ridge behind 
J. Morris’s orange orchard, and situated about three miles from South Grafton, N.S.W. The nest con- 
tained three eggs, which were, unfortunately, in a very advanced state of incubation. (See A. J. 
Campbell’s book, page 30.) The clutch measures as follows :—Specimen A. = 1°72 x 1°43; Speci- 
men B. = 1°72 x 1°43; Specimen C. = 1°73 x 1°40; Specimen D. = 1°82 x 1°37. 
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