Ok, if the Merlin's have finished migrating then the raptor that keeps taking Sparrows must be a Sharp Shinned Hawk, and frankly I don't give a damn what species it belongs to. Nor am I that fond of the description "Song Birds." Kind of makes you think of the medieval noblewomen who used to entertain themselves by watching their Merlin take Sky Larks. The Merlin was the "Lady Hawk." Boy Noblemen used to use larger, heavier falcons for their own perverse pleasures, which kind of says it all.
Then there's that expression "little brown job." Which refers to small
brown birds that are difficult to identify. It's a kind of
dismissive, but in a way understandable. The word Passerine refers to about half
the world's species of birds, and to know a Passerine is to look at their feet,
they have three toes pointing forward and one pointing back. Easier to think of
these species by their other name which is "Perching Birds." And certainly
the Perching Birds enjoy singing, in the early hours, but they don't skulk
around in the morning hunting other birds.