From the June 23, 1934, issue

YOUNG DESERT HAWKS SECURE IN NATURAL FORT

Double defiance to a hard and hostile world is offered by the splendid pair of young desert hawks pictured on the cover of this issue of the Science News Letter. In addition to their own armament of beak and claw, formidable even in their immature state, the hawklets have around their nest in the top of a tree yucca a forbidding cheval-de-frise of down-pointing, spine-tipped tough leaves that defies any climbing enemy.