It can be quite challenging to tell our local species apart, and to top it off some of the guide books have got some features wrong! It took us several years to differentiate species with confidence in the field, particularly with tadpoles and juveniles.
Therefore, we have updated our Frog Identification Guide to the Lower Mainland. It's posted on the Precious Frog website, and here's a direct link: www.preciousfrog.ca/wp-content/uploads/2016/11/FV_FrogsToads.pdf
We have also developed a frog handling and processing guide for trained technicians. Please contact us for hands-on training before you try this in the field yourself. We have the permits to do it.
Direct link: www.preciousfrog.ca/wp-content/uploads/2016/11/BCOSFRT-Frog-Processing-v1.0-Jul-2016_web.pdf