The Emu. 
93 
[When on the wing it takes an insect and returns at once to a 
branch. When there it continuously and rapidly shakes its tail.] 
8. MiCRaXA PALLIDUS (De Vis), Pale Fly-catcher. 
Mzcra'ca pallida, De Vis, Proc. Roy. Soc. Queensland, vol. i., p. 159 
(1884). 
a. Fledgling male, 1 1/3/00. 
b. Young female, 5/7/00. 
c. Immature female, 4/7/00. 
d to k. Adult males, collected in February, July, and August, 
1900. 
j. Adult female, 26/7/00. 
Excepting the fledgling there is a uniformity of markings and 
colour over all. Even the young birds moult quickly their nest 
plumage, and go at once into a strong likeness to the adults, 
male and female. 
Description of Young Male (specimen a). — Upper surface 
bears a striped appearance of white upon ruddy brown. These 
white marks, from the forehead to the upper tail coverts 
included, are upon the middle portions of the terminal half of 
the feathers ; the nuchal collar is nearly white ; central tail 
quills uniform brown, lateral pair creamy white, except at base 
of penultimate one, which is deep brown ; whole under surface 
whitish, with brown spots, indefinitely placed ; under tail coverts 
white ; loral spot white ; ear coverts brown with white barbs ; 
wings brown, deep on quills and light on coverts, which are 
edged creamy white, especially the inner secondaries ; tips of 
spurious wing fawn, under wing coverts fawn ; length of wing, 
3.15 inches. [Bill brown, lower mandible paler than upper; 
corners of mouth white ; irides brown ; legs and feet bluish- 
grey ; soles of feet yellow]. 
The young female {b) is mainly distinguished by having a 
frontal tawny mark instead of the white forehead of the adult, 
while in c, a more advanced female, the ear-coverts, sides of 
face, and forehead are tawny. 
[This bird is generally found in lightly timbered country. 
In the back yards of Derby township there is generally one pair 
to be seen.] 
9. Pachycephala falcata (Gould), Northern Thickhead. 
Pacliyccphala falcata, Gould, Birds Aust., fol., ii., pi. 68 (1848); Gadow, 
Cat. Birds Brit. Mus., vol. viii., p. 205 (1883). 
Eleven skins are to hand, of which seven are males and four 
females. 
The plumage development of the species is quite different 
from P. gutturalis.^ Whereas it is difficult to recognize any one 
of three stages of P, gutturalis as belonging to the same species, 
* Proc. Roy. Soc. Vict,, vol. xiii., New Series, part i., p. 19 (1900). 
