Hartlaub's bustard (Lissotis hartlaubii) is a species of bird in the family Otididae. Some authorities (such as Birdlife International 2004) place it in the genus Eupodotis. It is found in open grassland with grass up to 1800 meters in Ethiopia, Kenya, Somalia, Sudan, Tanzania, and Uganda. In comparaison with Black-bellied bustard, Hartlaub's Bustard tends to be "lower and drier".
At 60 cm, they are larger than the similar Black-bellied bustard (Lissotis melongastor but more grey and more clearly marked in face, and the lower back with blackish tail. They have a small head set on a long neck, and a bulky body with large legs. The female is similar in appearance to the male, but with a cream-coloured head and hind neck with dark brown markings, a whitish belly and paler tail .
Sources : Wikipedia / A Bird Atlas of Kenya