Non-existent early morning migration

Heysham Obs
Walks around the mound and then Ocean Edge foreshore revealed the following grounded birds, all on the north harbour wall:

Rock Pipit - one
Twite -  at least 56 with at least 3 unringed (out of c20 examined) plus a metal-ring-only bird
Pied Wagtail - 2

Early afternoon (thanks Sean)
Purple Sandpiper - 2