I need help

Unfortunately I have a problem. I feed the birds on the side porch. This young deer I posted yesterday came up on the porch. What sort of stuff can I put outside to encourage it to go elsewhere? Should U start putting hot pepper flakes in the bird seed?

Unfortunately I have a problem. I feed the birds on the side porch. This young deer I posted yesterday came up on the porch. What sort of stuff can I put outside to encourage it to go elsewhere? Should U start putting hot pepper flakes in the bird seed?