I'm designing a new (small) garden from scratch. 6m x 4m. I am very keen to
attract birds. I'm in the middle of London and the only thing currently on
the site is a mature sycamore.
I've read a bit, so I'm planning an ilex hedge (both sexes), climbing
honeysuckle, species rose (Rosa moyesii 'Geranium'), ivy, maybe a berberis.
Plus bird boxes, bird bath, feeders.

I just wondered what in your experience was your most succesful plant and/or
strategy for attracting birds? Specific cultivars especially welcome.

thanks

will