The seagull feed station near the fish factory

by k8carr

I’ve surmised, perhaps incorrectly, that when a trawler comes in it is unloaded immediately to the fish factory, and shortly afterwards a low pumping sound announces that loads of fish guts will soon be ejected into the harbour. This is the gulls feasting on all these fish gut type items. The permanently hang out at the vent which delivers them to the harbour waiting for just such a time as this.