I have ORIOLE but cannot connect with the "possessive noun" of Songbird,albeit an ORIOL (ROUND WINDOW) could be closely connected to HALO (ring), but still not a clear answer.
many thanks for the explanation, hadn't thought about AUREOLE
Seems like we all have "typo" errors, I put ORIOL for Window, which should have been ORIEL and I notice sandyRoe and dannyk13 have different spellings for AURE(I)LE for Halo.
Nevertheless thanks again