Splicing them together like that is a good way of doing it- I should do the same with all the fox clips I have... otherwise I just end up with folders full of small 15-second bits.
You've got some nice filming there- I've never seen a shrew in the wild.
Nice video, any one of the clips is what you'll normally see as you walk through the woods here if your lucky. Although I did once watch a pair chase each other over and under a log in the undergrowth totally oblivious to me