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A very protective swan did not like when a human tried to help his trapped cygnet.

According to the Little Tings blog, Simon Cowell is the founder of the Wildlife Aid Foundation in the U.K.

A video posted to YouTube shows Cowell struggling to rescue a cygnet who was trapped in a chicken wire fence. The baby’s dad, a massive, fully grown swan, repeatedly hit and hissed at Cowell.

“Don’t be silly,” Cowell repeated over and over as he tried to help the trapped bird.

Watch the incredible video above.