Tenebrous

So I went out to take some nightshots and play about with light trails, and Heron decided to join me. Or rather, to sit in my frame. Then she became very still, as cats do, and started paying great attention to the birdsong that was filling the evening garden.
And when I looked at the photos, I thought she would do nicely for Word no.5, Tenebrous, which means dark, murky, obscure, or causing gloom.
She certainly looks dark in the evening light, and I'm pretty sure the mice would agree with that last definition.