Steve Arena:
Black-necked Stilt - Himantopus mexicanus mexicanus vs. Himantopus mexicanus knudseni
Steve Arena:
Male Scaup Identification
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Ipswich Savannah Sparrow ID
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Rail Boat - I want badly
Steve Arena:
King Eider (Somateria spectabilis) - adult drake - great side by side comparison of COEI and KIEI - note the grinning patch of the KIEI
Steve Arena:
Black Vulture (Coragyps atratus) - great reverse image
Steve Arena:
Purple Finch (Haemorhous purpureus) female in comparison to a female HOSP
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Horned (Podiceps auritus) and Eared Grebe (P. nigricollis) Comparison
Steve Arena:
Stilt Sandpiper (Calidris himantopus) - adult in direct comparison to a Lesser Yellowlegs adult
Steve Arena:
Stilt Sandpiper (Calidris himantopus) - adult in direct comparison to a Lesser Yellowlegs adult
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Greater Yellowlegs (Tringa melanoleuca) and Lesser Yellowlegs (T. flavipes) - adults - great comparison
Steve Arena:
Greater Yellowlegs (Tringa melanoleuca) and Lesser Yellowlegs (T. flavipes) - adults - great comparison
Steve Arena:
Greater Yellowlegs (Tringa melanoleuca) and Lesser Yellowlegs (T. flavipes) - adults - great comparison
Steve Arena:
Common Greenshank (T. nebularia), Common Redshank (T. totanus), and Marsh Sandpiper (T. stagnatilis) - great comparison
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Adult Kumlien's Iceland Gull (L. glaucoides kumlieni) (left) versus Adult American Herring Gull (L. smithsonianus) (right)
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Immature Yellow-crowned (Nyctanassa violacea) and Black-crowned (Nycticorax nycticorax) Night-Heron
Steve Arena:
Immature Yellow-crowned (Nyctanassa violacea) and Black-crowned (Nycticorax nycticorax) Night-Heron
Steve Arena:
Semiplamated (C. pusilla) and Least (C. minutilla) Sandpipers
Steve Arena:
Black-bellied Plover (P. squatarola) (top) -vs- American Golden-Plover (P. dominica) (bottom) - Juveniles In-Flight
Steve Arena:
King Rail, Clapper Rail, & Intergrade Comparison
Steve Arena:
Black-bellied Plover (P. squatarola) (left) -vs- American Golden-Plover (P. dominica) (right) - Juveniles Head On
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1st Winter Bonaparte's Gull (Chroicocephalus philadelphia) and Black-legged Kittiwake (Rissa tridactyla) comparative view
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Pacific Loon (Gavia pacifica) with Red-throated Loon (Gavia stellata) - record shot
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RPS L-R: American Herring (L. smithsonianus), Glaucous Gull (L. hyperboreus), and Iceland (L. glaucoides) Gulls
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Arctic Tern (S. paradisaea) with Common Tern (S. hirundo) - up to 15 individuals (14 ad. 1 2cy.) present
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Head Comparison of Breeding Plumage Black-headed (C. ridibundus) left and Brown-headed (C. brunnicephalus) right Gulls
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Kumlien's Iceland Gull (L. g. kumlieni) great spread wing and tail
Steve Arena:
Kumlien's Iceland Gull (L. g. kumlieni), Amerincan Herring (L. smithsonianus), and Great Black-backed (L. marinus) Gulls - Great structural comparison
Steve Arena:
Three (3) Red-necked Phalarope (P. lobatus) with two (2) Red Phalarope (P. fulicarius) feeding right off shore