- Bark often removed around holes
- Holes are round and range in size from 1/4 to 1/2 inch
- Larger holes, 1 1/2 or more inches may be nesting holes and suggest softer heartwood inside the tree
- Woodpecker probing may indicate presence of wood boring insects under bark
- Repetitive tapping or drumming heard
- Birds of varying black and white patterns, often with some red, seen tapping on trees
- More information on Woodpeckers...