Young Blue Tit

My new Canon EF 100-400mm f/4.5-5.6L IS II USM lens turned up this afternoon - birthday present from MrW.  I have been playing with it a little bit but now have to put it away as we are leaving for Cheshire tomorrow for a few days for my birthday and I have to get the packing done.  I have let MrW have my old telephoto zoom lens (he only gets my cast-offs) and he seems happy with that.   We haven't argued about who is cooking dinner to night yet!