This property in Oatlands, Tasmania has a problem with birds.
They decided to put in a metal gutter guard to prevent the birds from accessing the roof.
What they have neglected to do is clean the gutters. As a result the grass is growing where the birds have dropped seed.
Gutter guard can be a good preventative measure but always be aware that the gutters will still require cleaning. Do your research. There are a few types of guard and each one can attract a different price when having to remove it for cleaning.