Birdhouse , garden, illustration, watercolor sketchbook

I had a lot of fun making this illustration in my Global Art
Acid -free journal (14x21 cm/8.25x5.5 inch)
about the first thought that came to my mind when Mr.E showed me our new birdhouse he made ..

Isn't it our duty to take care for all those little friends , to feed them now the days are getting colder ?