Besides a variety of seed mix or pellet, offer chopped dark green and yellow vegetables and a variety of fresh fruits in addition to a protein source like mature legumes, hard cooked chopped egg, and grated cheese. Remove fresh fruits and vegetables within 2 hours of offering to prevent spoilage. If the bird gets too much liquid from the fresh fruits and vegetables, the droppings could become runny. Stop the fresh food for a day to see if this is the reason. Millet Spray also makes an excellent supplement for finches.
Finches require fresh water each day.
Wash and rinse their water cup out thoroughly prior to adding fresh water to reduce bacteria growth. Powdered vitamins can be lightly sprinkled on the fresh food, but putting it in the water can encourage bacterial growth. When choosing a cage for your finch, remember length is more beneficial to the bird than height. Finches enjoy flying, therefore, the larger the cage the better. Perches are an essential part of the cage and should be chosen to suit the feet of the finch.