What is this large plant?

What is this large plant?

Observation - What is this large plant? - UK and Ireland. Description: This appeared after I spread wild flower seed but it is also near the bird table where seed scatters. Last year there were no buds on it but this year there are. Can anyone tell me what it is and if it has any wildlife benefit, thanks :-)

This appeared after I spread wild flower seed but it is also near the bird table where seed scatters. Last year there were no buds on it but this year there are. Can anyone tell me what it is and if it has any wildlife benefit, thanks :-)