THE BIRDS OF AUSTRALIA. 
the first was equal to the seventh ; in the female the second and third 
primaries were equal and longest, while the first was equal to the fourth. Such 
a note suggested similar differences might be found in other Lapwings, so 
!*■ instituted comparisons with my own birds. I find that very probably 
there is a difference between the sexes in the wing-formation, as will be noted 
under the different species. 
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