I got these group of sparrows on the wire out of my institution. Turned to B/W in photoshop.

EXIF:
Camera: canon eos 450d
Shutter speed: 1/500 sec
Aperture: f/20
Focal length: 55mm
Date taken:June 25th,2009
I'm a beginner in photography.Previously I used my N95 *gb phone. I got my first DSLR a month ago. Please help me with the field.