The animal pictured on the stamps is the Turtle dove (Streptopelia turtur). I don't know if this species is still endangered at this moment, I have seen a couple while going to my work lately... :) Also, I found this on the internet:
'This species has a large range, with an estimated global Extent of Occurrence of 1,000,000-10,000,000 km². It has a large global population, including an estimated 6,900,000-14,000,000 individuals in Europe (BirdLife International in prep.). Global population trends have not been quantified, but the species is not believed to approach the thresholds for the population decline criterion of the IUCN Red List (i.e. declining more than 30% in ten years or three generations). For these reasons, the species is evaluated as Least Concern.'
Anyway, it would be great if this animal is no longer endangered. I think you all agree with me that nature has already suffered enough so far, so any positive change would be more than welcome.