Ahh, he hopped into that gap did he, the gap that was not in front of the actual window he needed to get through? He didn't need to...he, like any normal person would just swipe that glass aside so he could utilise the whole sill. But he didn't, since no glass is on the ground because neither he nor anybody else went in through that window.
He climbed up that wall wearing gloves? He undid that latch wearing gloves? Then he left bloody fingerprints wearing gloves?
And he took the gloves out with him because he went out planning to burgle? So, he targeted the cottage in advance, before he even left his house...is that what you're saying?