Yes they do. There was a 100 in my pond, now they are less than 20! My son-in-law nearly had his ear off as the gull flew down past his face, caught the fish in his claws and flew off!!
no they do not they dont get that big
yes, they are scavengers and will eat almost anything.
No. It is much more likely that the salamanders will be biting chunks out of the goldfish.
Certainly. Kookaburras find that goldfish in ponds are one of the easiest takeaway meals they can have. If you are in kookaburra territory, outdoor fish ponds should be protected with a chicken wire covering, or other suitable covering.
Raccoons are not particular and will eat any fish they can catch, including goldfish and koi from backyard ponds.
Goldfish CAN eat garden snails if you break their shell open first.
I have had a few garden ponds in my time and while they do require some maintenance, they are a great way to create your own yard feature. The idea of frogs and fish in the same pond is very natural and they never bother each other when in their older stages. However, when frogs are in the tadpole/pollywog stage, fish will eat them if they get a chance. In regards to the frogs and fish eggs, tadpoles eat algae and older frogs eat insects.
Goldfish CAN eat garden snails if you break their shell open first.
Yes indeed they will. Most folks who have ponds with goldfish in place a cover of some sort to hinder/prevent the birds from getting their fish.
Seagulls will eat about anything
YES they do and also crows eat ducklings there are lots of birds that eat ducklings so keep an eye on your duckling wile in garden.
Big fish do not eat seagulls. Although, whales and porpoises do, in fact, eat seagulls from the ocean surface.