While walking on the Crabtree Creek Greenway this weekend, we happened to look up as we were walking under the Route 54 bridge. What is that? It looks like organ pipes made out of mud. That is the nest of the Organ Pipe Mud-dauber wasp (Trypoxylon politum).
Category: Animals
What’s That? May 14, 2024
What’s that? What is making those piles of tunnels in the dirt hills along the trails? Miner bees! Miner bees look like bumble bees. They are fuzzy and yellow on the top half of their back, and black on the bottom half. Miner bees are ground nesting bees. Each one of those tunnels is a… Continue reading What’s That? May 14, 2024
What’s That? May 20, 2025
What are these purple and white spots on the goldenrod leaves? They are caused by a bug, a goldenrod gall midge called Asteromyia carbonifera. The bugs carry a fungus (Botryosphaeria dothidea) that protect their larvae from parasitoids. The female Asteromyia lay eggs and deposit the fungus along with the eggs on the goldenrod leaves. The… Continue reading What’s That? May 20, 2025
What’s That? May 26, 2026
What are those red and white circles on the maple leaves? The bright, colorful circles really stand out against the green leaves. They look like little bullseyes. These spots are a maple eyespot gall, caused by an ocellate gall midge (Acericecis ocellaris). The larvae develop in the leaves of maples in the spring. They use… Continue reading What’s That? May 26, 2026
What’s That? November 25, 2025
What happened to that blackberry branch? The leaves are shriveled and curled up, and there’s white wax on the stem and leaves. This is damage from blackberry psyllid (Trioza tripunctata). Blackberry psyllids are bugs that look like small cicadas. They feed only on blackberry plants. They pierce the stem and suck out the sap. The… Continue reading What’s That? November 25, 2025
What’s That? September 10, 2025
What’s happening with that oak tree? Take a closer look and you will see a family of yellownecked caterpillars (Datana ministra) devouring the leaves.
White-throated Sparrows
White-throated sparrows (Zonotrichia albicollis) are a common sight in my backyard in the winter. They’re always hopping around the yard, kicking up leaves. At 8:30 one morning, I looked out the window and saw three of them. I stopped to observe them and realized they weren’t moving. I watched them for several minutes before I… Continue reading White-throated Sparrows
You Never Know What You’ll See In Your Own Backyard
Nature came to entertain us yesterday morning. We saw a large bird land in the woods behind our house, so naturally we tried to see what was going on. Who came to visit us? It was a turkey vulture (Cathartes aura)! At first it just sat on the ground. Maybe it was resting. After a… Continue reading You Never Know What You’ll See In Your Own Backyard
Young Turtles in the Spring
It’s always a joy to see the baby animals in the spring. We had the honor to watch this young turtle sun itself on a stick for a moment before it jumped into the water. Turtles usually hatch in the late summer or fall and overwinter in their nest. As the weather warms in the… Continue reading Young Turtles in the Spring