HFCheung

I think this year, migratory birds are trully in trouble.  Continuely poor weather from mid-March to late-April have produced a very unfavorable condition for migrants.  I guess the loss were much more severe than previous years.  In Liaoning, many migratory birds were seen in very poor condition, but spring has arrived at least two weeks later this year.  I guess the effect can be seen in this year's autumn migration.

HF Cheung