The spikes can become clogged by leaves, debris and bird feathers, and if left unchecked, allow birds to perch easily on top.
If left unchecked, this can allow birds to perch easily on top. The spikes can become clogged by leaves, debris and bird feathers.
The spikes can become clogged by leaves, debris and bird feathers. If left unchecked, this can allow birds to perch easily on top.
The spikes can become clogged by leaves, debris and bird feathers. If left unchecked, this can allow birds to perch easily on top.