I've got some uninvited visitors to my garden. I sprayed for bugs
about 3 weeks ago, but this mob was there today.
I don't have the skills to identify them, but I'm guessing there's a
90% chance they're not my friends. I don't want to spray again because
I've got some lovely robins and other birds that trust my garden
as a safe haven. (and, by the way, why haven't they eaten these
damned things?) Are these bugs bad guys and how do I get rid of them
without having to squeeze each one to death?