seagull at the margin of the douro river at ribeira do porto.

bird animal beak blue wildlife green wing nature waterbird duck ducks waterfowl art yellow zoo reflection pet seagull margin douro river ribeira porto rebelo boat background animal animals background beak beautiful bird birds blue close-up closeup destination douro river eye feather gull marine moody natural nature noise ocean outdoor outdoors porto portugal scenic sea seabird seagull seagulls seascape sky standing tourism travel water white wild wildlife wing yowl