Absolutely. "Dull" is relative. They're cut-off wire. It hasn't been sharpened but it hasn't been dulled. A bird flying in for a landing can certainly impale i

Absolutely. "Dull" is relative. They're cut-off wire. It hasn't been sharpened but it hasn't been dulled. A bird flying in for a landing can certainly impale itself if it doesn't realize the spikes are there. All about speed and momentum. They just not particularly sharp from the perspective of a feather-covered animal moving gently through a nest so as to not damage the eggs. They aren't needles.