grey and white pebbles on ground
two black and white birds
they are sitting/standing on gravel or sand
the birds seem facinated with something to the left 
Two black and white birds on the street
Two birds on the street looking left
Two birds with white chests
Two birds with black heads
Two birds with dark colored wings
Two birds with dark beaks
a couple of little birds stand on gravel as one black and white seagull sits in the middle of the pavement