Not in the sense they are here the rest of the year.
Migrants come and go, as the name suggests. Most noticeable are whooper and bewick swans, pink footed goose, fieldfare and redwing. In the spring when they leave they will be replaced by swifts swallows and martins. Other stuff too.
There are variants of common birds that come and go as well, while looking the basically the same there will be subtle differences. I'm not too interested in that much detail, yet.
We have a mild winter in comparison to Scandinavia and many birds will fly over here for an easier time, when this happens en mass due to food shortage or other issue it is called an "eruption". I've heard talk of a poor year for nuts on mainland Europe and as such many jays have flown across.
13-Oct-2014 18:31:25