68 CAM.VBEI.L, A Commonwealth Collection. [ist^"(Xi 



Bird {Prio)ioditra iicwtvniana) — lefereace, Emu, vol. viii., pi. 

 xxviii. — cream-coloured eggs of the Tooth-billed Bower-Bird 

 {Soenopceetes dentirostris) — reference, Emu, vol. viii.. pis. xxxii. 

 andxxxiv. — mottled eggs of the Satin Bower-Birds {Ptilonorhvnchus 

 holosericeus and P. minor), and a wonderfully linear-marked series 

 of the Regent-Bird {Sericulus chrysocephalus)- — see Emu, vol. ix., 

 pi. V.) — and those of the Chlamydera, the Fawn-breasted {C.cervini- 

 ventris) being the finest of the genus for its pronounced interlaced, 

 line-like markings. Examples of all coloured Bower-Birds' eggs 

 are figured on pi. xi., figs, i to 9. (In addition to these 

 splendid natural illustrations, reference may be made to the fine 

 half-tone blocks of nests with eggs from Mr. Jackson's negatives. 

 For C. guttata, see Emu, vol. ix., pi. xxviii., and for C. macnlata. 

 Emit, vol. xii., pi. xii.) 



Here are the smallest eggs in Australia, light buff in colouring, 

 and measuring only -^Vo "''*^'^ '^Y rW inch. They belong to the 

 tiny Tree-Tiis [Smicrornis) ; and the rare eggs of Amytornis are 

 recognized by a remarkably good series of rich reddish sets (see 

 pi. xiii., fig. 14). 



These are succeeded by fine drawers of Shrike-Robins'. The 

 "Fly" Robin [Heteromyias cinereifrons) appears oftener to lay 

 a single egg than a pair. The familiar " Yellow " Robins' 

 (Eopsaltria) eggs are most beautiful by reason of their greenish 

 shade and complementary red markings. Here, again, oology 

 scores. The uniform olive-coloured eggs of E. leiicogaster (White- 

 breasted Shrike-Robin) do not resemble those, of true Eopsaltria 

 (" By their fruits ye shall know them ") : therefore, that species 

 should be assigned to a different genus — namely, Amaurodryas — as 

 has been done by the " Check-list " Committee of the R.A.O.U. 

 (1913). After calling it a Pachycephala in his " Reference-list," 

 p. 317, Mr. G. M. Mathews has created for the species the new 

 genus, Quoyornis* Other members of the large and varied family 

 Muscicapidce are equally interesting. Those, for instance, of the 

 genus Arses, with their tiny hammock-like nests, that lay pearly, 

 red-marked eggs, as do the Monarcha, but depositing their eggs 

 in cup-shaped nests, beautifully built of green mosses. From this 

 latter group the Shining Flycatcher (nitidus), with its greenish- 

 white eggs (see pi. xiii., fig. 15), resembling somewhat those of 

 the familiar Fantail {Rhipidura motacilloides), obviously differs, 

 and should be retained under its original genus — Piezorhynchus — 

 as shown on the R.A.O.U. " Check-list." 



The glorious glossy dark green and umber marked eggs, in 

 sets of from one to three, according to the species, of the various 

 Cuckoo-Shrikes {Graucali) always attract attention for their 

 extreme beauty. But a set of four of the Ground Cuckoo-Shrike 

 [Pteropodocys phasianella), in mottled " picked green," has the 

 pride of place in the exceptionally fine series in the Belltrees 

 collection. (PI. xii., fig. 8.) 



* Austral Avian Record, vol. i., p. 1 1 1 (1912). 



