I have been viewing the water hole for around 2 and a half years. There used to be lots of animals visiting the 'hole', but since the dead tree branch edition to the 'hole', there seems to be far fewer visitations. Are the animals being defensive or suspicious? Or has the water been changed because of the dead wood in the water making it distasteful, or perhaps poisoned? The other day there was a close-up and it looked like the wood had turned completely black with fungi, and the white stuff on the horizontal branch looks like mushrooms indicating rot. Wouldn't it be better to mou