“The first time in 40 years that a gannet had flown in to roost but, instead of bringing a partner, Nigel quickly became infatuated with one of the 80 decoys designed to lure the real thing to the island.
So taken was he with his concrete love that he built it a nest out of seaweed and sticks, and was seen by volunteers apparently trying to woo it.” https://www.stuff.co.nz/environment/101073714/the-wrong-ending-nigel-the-lonely-gannet-found-dead-beside-his-concrete-love
Relationship success needs more than love, and something concrete isn’t enough either.
“We regard the current activities around the osprey nest as unethical and unacceptable. Even if they are within the law, they must stop immediately.” (http://www.rspb.org.uk/media/releases/397696-osprey-nest-activities-unethical-and-unacceptable)
The ospreys were unruffled by the criticism.