Irek, this is a cool post and definitely a great place to enjoy both nature and photography. But where are the marsh birdies you hinted at ?.. I'd really advise you to head posts like this to Photo Lovers community. (Although its a bit crowdy and packed, I admit.. but still).
There also exist PhotoFeed community, with contests every day of the week, and Photography [DAC] community -- do check! And I'd be looking for your birdwatching photos. GL!