Earlier quoted context omitted.
Picking the locks is breaking and entering, going through an open window is illegal trespass, assuming you don't have to move any parts of the window. At least where I live. It depends on whether or not you have to use even the slightest amount of force to gain access. It also depends on your intent to commit a crime inside. If I'm looking for you because I've found your toddler wandering around outside and I open an…
No, I don't think this is at all correct. Going through a window is breaking and entering.
> Although rarely listed as an element, the common law required that "entry occur as a consequence of the breaking".[7] For example, if a wrongdoer partially opens a window with a pry bar—but then notices an open door, which he uses to enter the dwelling, there is no burglary under common law.
There are more results if you search for "breaking and entering", it was all pretty consistent.