Elly, is the term 'witches broom' a new one to you? I'm sure you've seen them, but didn't know what they were. They don't qualify for barred owl housing. (See image in the attached link.) Spinster, I heard barred owls many times last year. One would even land on the peaks of our roof and call away. THAT'S something that will make you jump right out of bed! Anyway, a witches' broom is a dense cluster of branches, seeming to rise from a central point. It is a mutation found on a wide number of woody plant species, and is caused by a genetic mutation, or by a mutative response different kinds of insects. They can be huge or very small. Some witches' brooms result in some interesting new plant cultivars. The ones found in conifers are often hunted and collected. Here is a link that might be useful:

Since barred owls use nest boxes, I imagine one could be put up on your tree with proper reinforcement to keep it in place, after nesting season. I know the boxes are larger than the E. Screech Owl box we put up in our tree and I agree if that nest is up high it's best to use a skilled tree person. Not far from me, there was a barred owl nesting in a snag and weather deteriorated it to the point the owls found another tree nearby. The original nest was along a walkway in a park. I haven't found the new nest, but I have seen the owls at dusk and hear them.

Today was the day for 2 baby owlettes to leave the tree nest in my backyard. This is the same tree that has been used by the owls in the years before but what I found to be remarkable was that the owlettes left on 5/9 of last year and that's today's date of this batch of babies leaving as well! Amazing!! This year's story..... I only thought there was one owlette in the nest because I had only seen one little head peeking at me from time to time. When I got home from the grocery earlier today my neighbor ran to my door to tell me that a baby owlette was in their back yard and had been sitting there for quite awhile. They didn't know what to do and quite frankly I was hoping for all that I was worth that it wasn't the owl from my backyard because it was going the wrong way!!! I have acres of woodland behind my house and this little fella was going toward more houses. Wrong way! When I got to the neighbor's house I quickly realized that it was indeed the little owlette from my backyard. I looked for quite awhile but didn't see the parents and they surely would have shown themselves had they known where this little guy was with us being so near him. We decided to move him back towards the nesting tree at the forest edge because I felt it would definitely be a safer place. I got a cardboard box and was able to easily scoop him into it (I got to touch him and he was wonderful!). I got him into my backyard and placed him on the ground. He hopped only a couple of inches away but turned back towards me and just sat. I sat with him for a few minutes and I made some of my mama owl sounds (yeah, right... lol) but for whatever reason he actually was making sounds back with me. Truly wonderful. Still no sight of mom or dad yet. I'm worried. I left him and went to sit on my deck. He came towards my house instead of going towards the woods. He climbed a tree near my deck but fell when he was about 10 feet up. Then he hopped across the yard back towards the woods. Yaaaay! Then I finally saw Dad!!! He came and sat in the tree next to the deck and I'm pretty sure he was gonna make sure I didn't go near the little one again. Later in the day the little one finally climbed a tree and stayed. Mom & Dad were near. Still later in the day I was watching them all and saw movement near the other little one. YES!!!!.... it was a second owlette climbing the nearby tree!!! There were two of them! Yaaay! They both climbed.... and they both fell out of their trees. As it was getting dark I couldn't watch them any longer but I knew they were together as was Mom & Dad. And now.... here's pics of this year's (2008) baby owlettes! What a wonderful day!!! Judy

I love seeing Barred owls, and have seen them very few times. The babies are adorable. I envy you.