Water can be as simple as a traditional concrete bird bath on a pedestal or as complex as a water feature with recirculating pumps and waterfalls. The water should be shallow, else the birds might not be able to use it. It is becoming easier to find as horticulturists look for alternatives to Leyland Cypress. Best in moist spots. N,Y Ilex spp. - Holly.
Birds love the dense cover and fruits that hollies provide.
Many different cultivars of native and exotic hollies are available. Only the female trees bear fruit, so be sure to plant a male for pollination. Juniperus virginiana - Eastern Redcedar. Plant our native juniper instead of the overplanted Leyland Cypress. Birds love it and it doesn't get huge like the Leyland does.