Great bustard it well camouflaged in open habitats. Immature birds resemble the female. The eastern subspecies ("O. t. dybowskii") is more extensively grey in colour in both sexes, with more extensive barring on the back. The great bustard has long legs, a long neck and a heavy, barrel-chested body. It is fairly typical of the family in its overall shape and habitat preferences. Three other bustard species overlap in range with this species: the Macqueen's ("Chlamydotis macqueenii"), houbara ("Chlamydotis undulata") and little bustards ("Tetrax tetrax"). However, none of these attains the plumage coloration nor approach the body sizes of this species. Thus,
Ascochyta tarda will decrease in future decades because of climate change (Bucker Moraes W., Cintra de Jesus, W.J, de Azevedo Peixoto, L., Bucker Moraes, W., Morra Coser, S., Cecílio, R.A, 2012). This will also be an issue in Ethiopia where coffee farming is the source of income for approximately 15 million farmers in Ethiopia and as much as 60% of the current growing area can become affected (Moat, J., Williams, J., Baena, S., Wilkinson, T., Gole, T.W., Challa, Z.K., Demissew, S., David, A.P., 2017) Ascochyta tarda Ascochyta tarda or Phoma tarda is a fungal plant pathogen that causes dieback and leafspot on