Rnval Australasian Ornithologists' TTnioyi. 



231 



journey, had a reasonably clear view of tlie undisturbed birds. 

 In otlicr cases, one car closely following on anotlier, or a more 

 cramped position, necessarily handicapped the observer. The 

 grand totals of birds seen also vary considerably through some 

 observers seeing a large flock of birds {e.g., A. Le S. 300 Wood- 

 Swallows) when another observer only saw two of these birds. 

 Comparing the outward journey with the return one, it is also to 

 be noted that the former was made between 8 and 10 a.m., and 

 tlie latter in the early part of a hot afternoon — differences in time 

 of day and in temperature that should affect the numbers of birds 

 seen. Taking the results altogether, however, they are, I think, 

 reasonably concordant, give one a fair idea of the numbers of each 

 species over the route travelled, and warrant further applications 

 of this method of census-taking. 



Census of the Birds Seen Between 

 Mountains. 



Dalby and the Bunya 



Dalby to the Bunya Moun- 

 BuNYA Mountains, tains to Dalby, 



