AND FALCO PEREGRINATOU. 433 



on the inner webs of the lateral rectrices. It is from Northern 

 India, and measures : — 



Wing ... ... 11-4 



Tarsus ... ... IS 



Mid-toe S. W. ... 2 



The Norwich Museum possesses another male, unfortunately 

 with no more exact locality attached to it than simply " India,"'' 

 which exactly corresponds with the male just mentioned, except 

 that one new feather on the breast, rufous, and with no mark 

 beyond the actual shaft of the feather, and also the coloration 

 of the tail and upper tail-coverts indicates a slight further pro- 

 gress towards maturity. In the tail-coverts also, one g'rey adult 

 feather is visible, and the remaining feathers of the immature 

 dress in that part are alternately banded with transverse bars 

 of dark and light brown, the latter in places slightly tinged 

 with grey ; the tail is tipped with rufous ; the lateral rectrices 

 liave spots on both webs, rufescent towards the base, especially 

 on the inner webs, but becoming greyish as they approach the 

 tip ; the central rectrices show indistinct alternate bars of light 

 and dark greyish brown, the grey color prevailing, to the ex- 

 elusion of the lighter, towards the tip of the tail, and the entire 

 markings foreshadowing the more defined transverse bars on 

 the tail of the adult bird. 



The dimensions of this specimen agree exactly with those of 

 the preceding one. 



Very similar to the two last mentioned specimens are a male 

 and female from Nepal which are preserved in the British 

 Museum, but the transverse bars on the central rectrices are 

 more distinctly visible : ten on those of the male, and nine on 

 those of the female, increasing in breadth towards the tip of the 

 tail in both instances. These birds measure as under : — 



In all the five last-named specimens the contraction of the 

 longitudinal marking on the under surface has made very per- 

 ceptible progress, especially on the upper breast, but in others 

 the adult plumage appears to be in course of attainment without 

 tliis preliminary, and whilst the sternal and abdominal shaft 

 marks still retain their original breadth, or very nearly so, I 

 have seen three specimens which appear to me to be illustrative 

 of this fact; the first of these is a female belonging to Mr. 

 Hume, which was shot near Etawah in Northern India on the 

 2nd January 1869. In this specimen the sternal and abdominal 



