Most nature photographers are cognizant of the needs of birds and avoid causing any undue stress to their avian subjects. We don't use playback to bring birds closer and we keep a respectable distance from nests. There are photos of birds at the nest on this website. These are taken from a reasonable distance with the aid of powerful zoom lenses and in most cases, from an established pathway. Also, we don't chase or deliberately flush birds. Quietly stalking them will yield better results, but even this can be interpreted by birds as predatory behaviour. The most satisfying close encounters are had when birds move in to range of their own volition when we wait patiently in the one location. We never place food to bait birds to come in to range either. Guides have the benefit of an intimate familiarity with local species and habitats and can set you up to get great results without resorting to any of these dubious practises. Guests are encouraged to speak up if they see any situation that could be detrimental to birds or the environment while on tour.