Renno made a graph showing the daily numbers of eagles at the feeding in the period 30 Dec 2012 - 24 March 2013. He has estimated the numbers of all eagles based on the pictures and reports posted on the forum. The numbers of all eagles are minimum numbers: it is not an easy task to count unringed eagles and some eagles may go uncounted for.
During this period 172 observations of ringed eagles were made. The estimated number of all eagles visiting the feeding area was 588 in the same period. The ratio of ringed eagles to all eagles is 29 %. Taking into account that the all-eagle numbers are lower limits, this means that for each ringed eagle at least two unringed eagles visited the feeder.
After Renno made this graph one more ringed eagle was seen at the feeding ground on March 25th and 26th.