How do urban bees find food ?

How do bees living in built-up areas manage to locate enough food for their hive ?

Ours visit the local *Food Bank.

* A food bank or foodbank is a non-profit, charitable organization that distributes food to those who have difficulty purchasing enough food to avoid hunger. The UK Trussell Trust said three days' food was given out 1,084,604 times in the 2014-15 financial year.