We think this little chirper is a female Reed Bunting.
Small and Robin-like, but possibly slightly smaller than the Robin.
Using the RSPB ‘Bird Identifier’ tool the other likely candidates would be a Chiffchaff or a Willow Warbler – but both those types of bird have a distinctive darker line across the eye in the face feathers. Or maybe a Siskin?
After much deliberation and looking at alternatives we “think” (but are not 100 per cent sure) it’s a female Reed Bunting.
The males are darker are more distinctively coloured. Possibly juvenile.
She arrived shortly after the harvesting of the garlic patch, and quickly got to work hunting out worms from the newly turned over patch on the allotment on 4 June 2020.
If anyone knows for sure what this little chirper is, please do send us a comment!