Later, it was determined that those birds, which disappeared in Europe, emigrated to Middle East countries and Africa and they still live in these countries. Thermit Ibis that come to Birecik in the middle of February settle down at rocks in the middle of March. After their procreation, they grow up their youngs and in the middle of July they leave Birecik with their youngs. The reason for these birds to come to Birecik for procreation is thought to be that the calcite mineral in those rocks increased the procreation energy of birds. Thermit Ibis birds are single mate and every year they build their nest and lash out with the same couple.
Mature birds are the ones that show their energy to build up a nest.
It is necessary to be 5 years old, to become a mature bird. Their average life period is 25-30 years. In the beginning of 1950, the number of Thermit Ibis was more than 1000, there had been a specific decrease in the number of birds since 1954. Destruction of natural feeding environment of these birds with overuse of agricultural insecticide chemicals, hunting of these birds by the hunters in their long immigration period and cold weather conditions are the main reasons for the decrease of Thermit Ibis birds. Thermit Ibis birds follow the Lebanon - Israel way and the River Nil or Red Sea coast and can not be observed at those places.