What's that ?

Today we went for an early - ish walk with my camera, and I snapped some new shiny cows, pretty scenery and old stonework.......but this one taken at home won the day!
Russet can't see the dog next door, but she hears it if dares to come anywhere near the fence. Pushing through shrubs, she just has to go and have a bark, and sometimes he joins in......
No dog is perfect!