emace: Ring-billed Gull - Lake Petersburg, central Illinois
emace: Ring-billed Gull - Lake Petersburg, central Illinois
emace: Bonaparte's Gull (juvenile) - Lake Petersburg, central Illinois
emace: Bonaparte's Gull (juvenile) - Lake Petersburg, central Illinois
emace: Bonaparte's Gull (juvenile) - Lake Petersburg, central Illinois
emace: Bonaparte's Gull - Lake Petersburg, central Illinois
emace: Bonaparte's Gull - Lake Petersburg, central Illinois
emace: Ring-billed Gull - Lake Petersburg, Menard county, central Illinois
emace: Ring-billed Gull - Lake Petersburg, Menard county, central Illinois