Lesser Black-backed Gull

Adult (alternate plumage)- mid March

Lesser Black-backed Gull- alternate plumage

Lesser Black-backed Gull- alternate plumage

Adult (basic plumage transitioning to alternate)- mid-March

Lesser Black-backed Gull, transitional plumage (basic to alternate); mid March

Lesser Black-backed Gull, transitional plumage (basic to alternate)- mid March; note retained black feathering on face and leg color not as intense as will be obtained

Adult in basic plumage

Lesser Black-backed Gull, adult basic plumage

Lesser Black-backed Gull, adult basic plumage

Below is a 3rd cycle individual:

Lesser Black-backed Gull, 3rd cycle

Lesser Black-backed Gull, 3rd cycle

1st Cycle birds:

Lesser Black-backed Gull, 1st cycle

Lesser Black-backed Gull, 1st cycle; comparison to Herring Gull in background

Lesser Black-backed Gull, 1st cycle

Lesser Black-backed Gull, 1st cycle