I am looking for some advice on the best methods to catch adult Herring gulls using whoosh nets over the winter months. I have been baiting an area between two poles and a fake net (to mimic the whoosh nets) for a few weeks and I have already changed sites twice. Some days I get good numbers down feeding (40-50 gulls) but other days they are so wary and despite remaining interested in the food source, they won't come near. This is making it very difficult to pick a date to attempt whoosh netting and ideally we would like to catch as soon as possible.
Any advice on the best methods/techniques/best bait to use etc. to get gulls coming down regularly would be really appreciated! This is part of my PhD research and we are hoping to colour ring some birds prior to the breeding season.
Thank you! Rebecca