These images go back to 2007 (Brood XIII).
Sue had noticed that seagulls had taken a liking (maybe an obsession) to cicadas. Look at all those seagulls ready to swoop down (or up) and grab a cicada:
No seagulls in this photo, just exuvia on a tree:
I live near the ocean and can testify that seagulls are bold and voracious eaters. They pose a threat to not just cicadas, but also seals and even Jedi: