Questions often arise around the subject of trimming trees.
Trimming trees during spring and fall migration and during nesting times could be harmful to birds if not done properly. It also might lead to a violation of federal laws under the Migratory Bird Treaty Act.
Trimming can be done safely any time of the year. To ensure the security of birds carefully check your trees (or have your landscaper check) for nests with eggs or hatchlings. Follow best practices when trimming near these nests to protect them.
The Western Chapter of the International Society of Arboriculture provides an extensive guide for the proper trimming of trees. Red Rock Audubon, which contributed to this effort, strongly urges all people to follow their best practices which will result in healthier trees and support bird populations.
Please follow the link below to their website and their guide to tree trimming.