I am a freelance naturalist based in western Massachusetts and working throughout New England.  My passion is to continually deepen my connection with my natural surroundings and help others to do the same. I do this through writing, photography, teaching, leading natural history walks, giving slide show presentations, and conducting plant and animal surveys.

I am the lead author of Tracks & Sign of Insects and Other Invertebrates (Stackpole Books, 2010), and continue to collect photographs and information on this subject.  I share some of my latest observations on my blog, BugTracks. I am especially interested in the signs left by herbivorous insects on their host plants, and have been studying leafminers intensively since 2011. A first edition of my new book, Leafminers of North America, is being made available in 18 monthly installments of PDFs beginning January 2018.

I’m always interested in trying to solve natural history mysteries, bug-related or otherwise. If you’ve got one you’re puzzling over, feel free to send it to me at ceiseman@gmail.com, and if you want to ponder some that have me stumped, take a look at these.

For more information about my ecological consulting services, see this page. A list of past clients is included in my CV.

Photographing burrows of sandstone-boring bees in California.

Photographing burrows of sandstone-boring bees in California (photo by Noah Charney).