I've snared land during various weather conditions, and as always the dark windy nights are the best... Weather, Terrain, Vegetation(crop) all play part in it.... You can snare at one time and not catch for days, then you could try in a week and catch... Its not all solely down to snare placement. Snare a wood boundry, the rabbits pass through mesh to feed, but sometimes they remain in the wood and eat vegetation, nothings set in stone...so its best to use a varied method, be it fence snares/hoops in wood then choose the best conditions... Also look for clear signs, fur, runs (beats), scrapes,