'Spring messenger' is in danger of extinction
After 20 years, we may not have the opportunity to witness the swallow swallowing in the sky signaling the spring.Swallow birds fly fast beyond imagination
How fast is swallow swallow? This question has recently been answered by Canadian scientists.Beautiful photo: The war of gulls
The extremely impressive and fanciful moments of the bird world were recorded by Finnish photographer Markus Varesvuo.