We established reference ranges for three hematologic and 15 clinical chemi
stry parameters of 40 clinically healthy birds of the genus Eos. The follow
ing species were included to the study: Eos histrio (n = 19), Eos squamata
(n = 8), Eos bomea (n = 5), Eos reticulata (n = 4), for cyanogenia (n = 4).
Derailed information concerning methodology, which is often missing in pap
ers dealing with reference values, is included. As far as possible, data ar
e compared with literature, and some thoughts on obvious deviations are giv
en. The problem of establishing reference values in rare species is reviewe
d.