Loads. Not just seabirds, but lots of heath and farmland birds too.
Puffins were almost impossible to see, though. We went in Easter when they are there nesting. Their burrows are on a cliff edge and you could only really see them from a neighbouring cliff/headland. Both binoculars you could just about make them out from their distinctive orange feet
That sounds like a cracking idea, the suggestion is that something in Apple's ToS prevents this generally - but is that the case, if Signal manages it?
Signal sends notifications via Apple's push notification servers. So I'm still not quite clear what are suggesting. That apps run continuously in the background. each doing real-time polling of their respective servers for notifications? Because your battery ain't going to last long.
Given that I was replying to a message drawing equivalence, you'll see that I was saying that they weren't really equivalent, in that Ukraine hadn't mounted an attack on Russian civilians. Hope that helps.