Purchased these two english roseum rhododendron's a year ago and they bloomed beautifully. The winter passed and here's what's left. Are they completely dead!? I've been reading about winter having an effect on them too. Anything I can do to revive them? Thanks!

Well the first one with the leaves isn't dead yet. In the last picture it looks as though much of the root system is exposed? Also there look to be holes going under the roots. Do you usually have a problem with voles?

I'm not sure what the issue is with your Rhododendron 'English Roseum' I only see dead leaves and the branches don't appear to have much life either. 'English Roseum 'is an Evergreen variety so I'm not sure what the problem might be unless as sooby mentioned, possibly a critter has burrowed beneath your shrubs and disturbed the roots? I hope you can save them but they sure look sad.