Watercolor on Silk of Roosters, Butterflies, Birds and Flowers

This is a wonderful watercolor on silk painting by an unknown artist. The signature and seals cannot be fully deciphered. The inscription on the painting is from a Chinese poem by Du Fu. It roughly translates to the following: 

Deserted temple stands behind the willows 
Spring is going wild between the water filled fields 
Beautiful flowers and bamboos are reflected on them 
Birds tend not to return to the mountains 

The painting measures 10.5 x 36 inches, with the bamboo frame.  Stamp on back confirms the painting was framed in 1962