Clubbing is an enlargement of the ends of the fingers and a downward sloping of the nails. Although it's not caused by chronic obstructive pulmonary disease (COPD), it can be a sign of coexisting lung cancer or other lung disorders in patients with COPD. Clubbing is sometimes called digital clubbing. It can affect the fingers and/or toes.
Relatives. Darwin's finches can be divided into groups based on beak type. There are three species of tree finch: the small tree finch, medium tree finch, and large tree finch. Tree finches have grasping beaks.
Diet. Although Gouldian finches have evolved to eat seeds, an all-seed diet does not provide adequate nutrition. Plan to feed your finch a mix of seeds along with some fruits, vegetables (especially leafy greens, such as spinach, dandelions, romaine, and parsley), and perhaps live insects.