Recently the Double-crested Cormorant has greatly increased in abundance beyond what was known historically. It is believed that the recovery was allowed by the decrease of contaminants, particularly the discontinued use of DDT. It is believed that it has increased to such great numbers because of aquaculture ponds in its southern wintering grounds. The ponds favor good over-winter survival and growth.
Everybody bulldoze in your ponds and break out the DDT. We can have them under control for our great-great grandchildren.
