Q: We moved to a property where there are many shallow, large roots spreading out from a mature tree in the lawn, and the roots have holes in a few places. Should we fill them in to prevent rot? A: ...

They are called excavator mulchers. That's polite. What they really do is swallow trees. This one, a DAH Forestry Mulcher from Quebec's manufacturer Denis Cimaf, consumes a 30-foot-tall, mature spruce ...

The tree swallow is the only swallow that is truly swallow tailed, meaning the tail is deeply split and has white spots. The adult is blue-black above; cinnamon-buff below, with a darker throat. Most ...

Watch along as Dr. Clay Corbin of Bloomsburg University bands some tree swallow chicks, it's all part of the Tree Swallow Project.

Question for Dan Gill: Could you explain why too much fill can kill a tree? --Carol Cohen Answer: Tree roots breathe in oxygen and breathe out carbon dioxide. They obtain the oxygen they need from the ...

It's got big iron teeth and a powerful jaw. When it finds a 30-foot tree it goes to the top, opens its mouth and — watch this. They are called excavator mulchers. That's polite. What they really do is ...