The Common Crane in Estremadura, Spain
Describing my search to see and photograph Common Cranes on the rice paddy fields in Estremadura, Spain. And notes on the migration of Cranes and the current epidemic of bird flue that is affecting them.
The Common and Arctic Terns – hybridisation and migration
Arctic Terns migrate huge distances each year. Common Terns migrate short distances. When the species hybridise how do their off spring migrate?