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I have been hearing the sporadic individual late-season Spring Peeper calls over the past few weeks. Early this morning one was 8' up on the vertical wall above a veranda post: https://www.flickr.com/photos/92981528@N08/20529112459/in/dateposted-public/ The white background nicely shows off its adhesive toe pads. Then it surprised me by moving along this vertical surface quite briskly. For anyone interested in how Treefrogs are able to accomplish this, here is a detailed article: http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.486.8442&rep=rep1&type=pdf Friction may also play a role: https://www.newscientist.com/article/dn11587-friction-helps-frogs-stick-to-ceilings/ Nancy D Dalhousie, Kings
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