In the era of global warming, we need to have a system to monitor the
responses of birds to the environmental changes. Therefore, we started
the monitoring of bird phenology with the cooperation of citizens in 2005.
Records of the arrival of summer visitors and first singing dates were
collected over the Internet. The species were selected with the identification
ease for beginners to in mind.
Spot-billed duck Anas zonorhyncha
(First sighting of chicks)