Possible Clues:

• Marsh bird from intensely cold North
• Bird gets very cold heading north
• Bird from the frozen north
• Bird - little bird
• Bird on an icy pole
• Beer offered to new winger
• How the unforgiving North might give one the bird
• 'He shall not hear the . . . cry' (Ledwidge)
• Source of boom in freezing North
• Bird of the unforgiving North