Quote Originally Posted by rubycat16 View Post
There is a really good UTUBE video of Wisconsin DNR doing a perch survey. They discuss at length the impact comorant have on perch population. They state that these birds each eat about a pound of perch per day! They go on further to discuss controlling thier reproduction by spaying oil on the eggs in nesting areas thus starving the embryo. They claim it is very effective in controlling the comorant population.
Can't remember if I saw it in a show or read an article, but they said they tagged young Smallmouth on Erie to see how the birds affected them. They found thousands of the tags under nests on, I believe, West Sister. Also, the Indiana DNR recommends putting oil on resident goose eggs to control them also.