Reproduction 113 
they hover in a peculiar fashion here and there until the crouch- 
ing Lark is seen. 
One other matter of interest with regard to recent nestlings 
remains to be noted. That is that the young hop, do not walk. 
Apparently Brooks (1908), is the only other writer who has 
noticed this. It may be a recapitulatory feature harking back 
to a hopping ancestor or, more likely, it is merely an anatomical 
defect in the young which has no ancestral relationship. In any 
ease walking is not learned for several days and when first 
attempted is a slow waddle with legs spread widely. Rapid 
locomotion for many days is accomplished by hopping. One of 
my most trenchant recollections of the Larks is of a female mov- 
ing rapidly off down an old wheel rut and running, with a young 
Lark following and going just as rapidly as she—but hopping. 
MOLT. 
Activities subsequent to nesting have been taken up in a gen- 
eral way under fall and winter activities. A word or two re- 
Mains to be said of molt. Dwight (1890) was, it seems, the 
first to show that the transition from the juvenile plumage to 
the adult is accomplished by a complete molt of wings and tail 
as well as body feathers. This molt, in the case of praticola 
occurs between late July and late August. Dwight also brought 
out the fact that there is but one molt in the year for adults 
too, the post-nuptual. Breeding plumage comes about by the 
Wearing off in late winter of the brown tips that obscure the 
black areas of crown, cheek and throat. 
ECOLOGY OF THE NESTING-SITE OF THE PRAIRIE 
HORNED LARK IN RELATION TO OTHER 
BREEDING BIRDS AT EVANSTON, ILL. 
At Ithaca, N. Y., because of the comparative uniformity of the 
conditions of the breeding area, there was not presented the 
opportunity, as at Evanston, IIl., of observing a large number 
of other breeding birds near at hand. As a matter of fact the 
Situation at Evanston was unique in that the subdivided golf 
course with its torn street-ways, old hazards, grass and meadow 
areas and weed patches, all allowed now to proceed uninter- 
