Great blue heron Ardea herodias Location: Zilker Park, Nature Center - Austin, TX Year: 1991 Merckslides catalogue number: 04-15360 Comments:

Great blue heron Ardea herodias Location: Bachas, Santa Cruz - Galápagos Islands, Ecuador Year: 2004 Merckslides catalogue number: 16(04)-18682 Comments:

Great blue heron Ardea herodias Location: Puerto Ayora, Santa Cruz - Galápagos Islands, Ecuador Year: 2002 Merckslides catalogue number: 13(04)-20036 Comments:

Great blue heron Ardea herodias Location: Post office Bay, Floreana, Galápagos Islands, Ecuador Year: 2002 Merckslides catalogue number: 13(04)-19791 Comments:

Great blue heron Ardea herodias Location: Pinnacle Bay, Bartolomé, Galápagos Islands, Ecuador Year: 2002 Merckslides catalogue number: 17(04)-20435 Comments:

Great blue heron Ardea herodias Location: Great Falls of the Potomac, near Potomac, MD Year: 2006 Merckslides catalogue number: 04-23130 Comments: GEOL100 field trip

Great blue heron Ardea herodias Location: Great Falls of the Potomac, near Potomac, MD Year: 2006 Merckslides catalogue number: 04-23131 Comments: GEOL100 field trip

Great blue heron Ardea herodias Location: Olmstead Island overlook, Great Falls of the Potomac, near Potomac, MD Year: 2008 Merckdigitals catalogue number: 04-52904 Comments: GEOL100 field trip

Great blue heron Ardea herodias Location: Olmstead Island overlook, Great Falls of the Potomac, near Potomac, MD Year: 2009 Merckdigitals catalogue number: 04-71128 Comments: GEOL100 field trip

Great blue heron Ardea herodias Location: Kenilworth Aquatic Garden, Washington, DC Year: 2010 Merckdigitals catalogue number: 04-73838 Comments:

Great blue heron Ardea herodias Location: Kenilworth Aquatic Garden, Washington, DC Year: 2010 Merckdigitals catalogue number: 04-73855 Comments:

Great blue heron Ardea herodias Location: Kenilworth Aquatic Garden, Washington, DC Year: 2010 Merckdigitals catalogue number: 04-73856 Comments:

Great blue heron Ardea herodias Location: Kenilworth Aquatic Garden, Washington, DC Year: 2010 Merckdigitals catalogue number: 04-73868 Comments:

Great blue heron Ardea herodias Location: Bachas, Santa Cruz, Galápagos Islands, Ecuador Year: 2011 Merckdigitals catalogue number: 04-75907 Comments: Haunting green turtle nesting ground, awaiting emergence of hatchlings.

Great blue heron Ardea herodias Location: Bachas, Santa Cruz, Galápagos Islands, Ecuador Year: 2011 Merckdigitals catalogue number: 04-75909 Comments: Haunting green turtle nesting ground, awaiting emergence of hatchlings.

Great blue heron Ardea herodias Location: Bachas, Santa Cruz, Galápagos Islands, Ecuador Year: 2011 Merckdigitals catalogue number: 04-75910 Comments: Haunting green turtle nesting ground, awaiting emergence of hatchlings.

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