Vismig calls

Here is a selection of calls I've found on the excellent xeno-canto website of the type of vocalisations I've heard species give while migrating.  If you've never given a vismig session a go before listening to these, and remembering them, should give you a great start.

Chaffinch

Brambling
Siskin
Redpoll
Greenfinch
Linnet
Reed Bunting (both call types)
Redwing
Fieldfare
Song Thrush (the first 'tik' call)
Blackbird
Dunnock
Yellowhammer
Yellow Wagtail
Grey Wagtail
Pied Wagtail (actually White Wag, but essentially the same)
Meadow Pipit
Skylark
Goldfinch

Scarce:
Corn Bunting (the 'pip' call)
Tree Pipit
Crossbill

Rare:
Hawfinch (the call after 25 secs)
Lapland Bunting
Ring Ouzel
Snow Bunting
Woodlark