The first stamp, issued in 2017, shows a snowy owl (Bubo scandiacus). It is one of the largest owl species in the world and it can be found in the Arctic regions of Europe, Asia and North America. It is migratory. Males are more white than females. In contrast to many other owl species, it is often active during the day. It feeds on small mammals, birds and occationally carrion. It is a vulnerable species.

The second stamp, issued in 2015, shows a boreal owl or Tengmalm's owl (Aegolius funereus). It is a small-sized owl with seven subspecies. It can be found in Europe, Asia and North America. It feeds on small mammals and birds as well as amphibians and invertebrates. In contrast to the snowy owl, it is largely nocturnal.

Osprey (Pandion haliaetus) was shown in the past. Here it is depicted on a 2003 WWF set of stamps from Poland while fishing as well ad with its young.

Merry Christmas to everyone! Here is a pre-paid card from Poland. It was issued in 2006 and it is part of a series showing the beauty of this country. White storks (Ciconia ciconia) are one of them.