Now now now corax67 sea watching does not mean staring at empty skies for hour upon hour, you can stare at empty waves as well ;-)
I work to no fomula
I let my ears decide
If I can't hear birds why wait for them to come to me. I'd rather keep walking until I hear something that me stop and see what is making the call
Being new to birdwatching I find this a brilliant question and have enjoyed reading the replies. I have found that I seem to keep walking using my eys and ears( my legs do the walking) to look for birds. Have to say that generally I find this unsuccessful. I have however taken time to stop for 5/10 and simly let the birds come to me. This gives me more time to concentrate and scan using my bins. AS birds and other animals are very good at not revealing themselves I find that I can see more this way
Stewart