just a note (from an individual who witnessed questionable practices at Pasir Ris Park) to highlight the acts of some so-called nature photographers. I'd hope it's not anyone active here.
Birders Behaving Badly « G33k5p34k
excerpt: "The last straw came, however, when the pitta finally flew off deeper into the mangrove, whereupon several of the birders present took the opportunity to leap off the boardwalk and onto the sandy mangrove substrate to chase after the bird. In addition to that, our erstwhile pisher whipped out his iPhone and began playing back a recording of the mangrove pitta’s call in an attempt to draw the bird out of the dense mangrove forest and out into the open. Like pishing, call playback also has the effect of luring out birds, though in this case it’s mainly due to the fact that birds tend to be territorial and playing back the call of another individual of the same species fools the bird into thinking another individual is present and is contesting its territory. This, too, has the unwanted side effect of placing the bird under unnecessary amounts of stress and duress since defending one’s territory is quite a taxing task for the bird and may lead to birds abandoning their territories if they lose the challenge. Indeed, if the bird happens to be nesting, playing back the call of another individual may sometimes lead to birds abandoning their nests and aborting their breeding cycles if the bird thinks the playback is a more dominant or aggressive individual. This is particularly problematic for slow-breeding species like the pittas and using call playbacks to draw pittas out may have the opposite effect of chasing the bird away from the site. All this, of course, on top of the fact that members of the public are generally not supposed to stray off the boardwalk in the mangrove areas for fear that their trampling may accidentally damage the mangrove trees or negatively affect the mangrove fauna."