Yes Youyouchen, they certainly were focused on somthing, two huge swans were sailing towards them. A few moments later they panicked (see following picture).
thanks for ur detailed reply ,i didn't see ur tags yesterday when i saw this photo and made comment here & i skipped the other tow photos .I just told you how i felt about this picture .Once again i wanna say i like this photo very much .thanks for sharing ,senna