sentences:  For example pairs in the Naurzum Nature Reserve showed during study to produce 123 males and 116 females from 1998-2004.Further study in Kazakhstan showed that adult survivorship was about 84%, which is somewhat low for long-lived raptor, but nonetheless reproductive rate shown to be sufficient to maintain a stable breeding population.While breeding success in areas such as Naurzum reserve may be successful, in non-pristine habitats of Kazakhstan the breeding population may not necessarily be self-sustaining.