Regarding the cormorant seen this past weekend with the hook through its mouth, Lauren Butcher of The Raptor Trust writes:
"This is a difficult situation — this young cormorant obviously needs help if possible, but as long as it can fly and swim, it will be nearly impossible to catch. Wild goose chases don't just apply to wild geese!
"In cases like this, the only opportunity to capture the bird may be (unfortunately) as it becomes more debilitated from infection or hunger.
"If you do have the opportunity to look for this cormorant again, you might go prepared with a deep, long-handled net (small holes in the mesh would be best so the bird doesn't get tangled), a beach towel or blanket, some thick work gloves, and a secure cardboard box with air holes, lined with a towel. (Actually, this is a good bird rescue kit to have for all sorts of situations.)"
The rest of her advice follows.