February 1965 – vol. 58, issue 2–47 T H E B U S T A R D S , as a family, are terrestial birds and spend the major part of their time on the ground, but both the Great Bustard Otis tarda and the Little Bustard O. tetrax frequently indulge in short flights and take to the air readily if approached. Being a desert species, the Houbara Bustard Chlamydotis undulata is less inclined to fly than the other two, preferring to crouch. However... This article is only available to registered users.To read more, please log in or purchase a subscription.