This butterfly was on a windowsill and spent much time on a spot where my cat had vomited last year. A great spangled fritillary and a morning cloak have also come to that spot and appeared to be trying to suck something off the wood. Mostly kept its wings folded but opened them for no more than a second or two several times. I got about 40 images during its two visits to the sill which lasted 10 to 15 minutes each.