Great Blue Heron (Ardea herodias)

Visits

• 1978-07-04

  Sand Lake, United States of America
• 2001-12-28

  Puerto Vallarta, Mexico
• 2004-06-20

  Gwaai Haanas National Park, Canada

  Common. At one site, about 8 herons were being mobbed by about 20 crows.
• 2005-09-17

  Fermilab, United States of America
• 2005-12-05

  Sutro Heights--Baths / Land's End, United States of America
  
• 2006-02-23

  Berkeley Marina, United States of America
  
• 2006-08-10

  Canyonlands National Park, United States of America

  Seen daily.
  
• 2006-11-28

  Isla Plaza Sur, Ecuador
• 2007-01-01

  Candlestick Park, United States of America
• 2007-04-07

  Torrey Pines State Reserve, United States of America
• 2007-10-17

  Sontecomapan, Mexico
• 2008-01-04

  Puerto Vallarta, Mexico
• 2008-02-17

  San Jose del Cabo - Estuary, Mexico
• 2009-01-18

  Lamanai Ruins River Trip, Belize
• 2009-01-26

  Mountain Pine Ridge, Belize

  Saw a large grey-backed heron near the Rio On Pools.
• 2009-02-18

  Parque National Palo Verde, Costa Rica
• 2009-02-25

  Corcovado National Park - La Sirena, Costa Rica
  
• 2009-03-15

  Boca de Cupe, Panama
• 2009-05-05

  Elgin - Bluff Spring Fen, United States of America
• 2009-06-01

  Redwood Valley, United States of America
• 2009-11-29

  Heron's Head Park, United States of America
• 2010-01-01

  Arrowhead Marsh, United States of America
• 2010-02-01

  Elgin - Bluff Spring Fen, United States of America
• 2010-02-21

  Lerma Marshes, Mexico
• 2010-06-11

  Petersburg - Wrangell Narrows, United States of America
• 2010-10-30

  Miller Meadow Forest Preserve, United States of America
• 2011-07-10

  Santa Fe River, United States of America
• 2012-06-04

  Grayling, United States of America
• 2012-07-08

  Necedah NWR, United States of America
• 2012-07-11

  McKenzie Slough, United States of America
• 2012-08-12

  Redwood Shores - Radio Road, United States of America
• 2012-12-13

  Heron's Head Park, United States of America
• 2013-03-04

  John Heinz NWR at Tinicum (IBA), United States of America
• 2013-04-14

  Austin, United States of America
• 2013-04-16

  Aransas NWR (CTC 037) (Aransas Co.), United States of America
  
• 2013-04-17

  Brazoria NWR (UTC 108), United States of America
• 2013-04-19

  Anahuac NWR (UTC 049), United States of America
• 2013-11-29

  Lake Merced , United States of America
• 2013-12-01

  Heron's Head Park, United States of America
• 2014-01-01

  Heron's Head Park, United States of America
• 2014-01-21

  Jimani, Dominican Republic
• 2014-01-22

  Cabo Rojo - Pedernales, Dominican Republic
• 2014-01-26

  Los Haitises National Park, Dominican Republic
• 2014-02-15

  Lake Merced , United States of America
• 2014-02-22

  Santa Fe Grade, United States of America
• 2014-03-04

  Chabot Regional Park, United States of America
• 2014-03-09

  Los Angeles County Arboretum and Botanic Garden, United States of America
• 2014-04-05

  Cosumnes River Preserve, United States of America
• 2014-04-06

  Delta Meadows State Park, United States of America
• 2014-06-14

  Peaarson-Arastradero Preserve, United States of America
• 2014-08-23

  MacKerricher SP, United States of America
• 2014-09-23

  Redwood Valley, United States of America
• 2014-10-08

  Golden Gate Park - South Lake, United States of America
• 2014-12-21

  Arrowhead Marsh, United States of America
• 2015-01-01

  Candlestick Park, United States of America
• 2015-01-02

  Pixley NWR, United States of America
• 2015-01-03

  Mendota Wildlife Area, United States of America
• 2015-01-10

  Half Moon Bay - Pillar Point, United States of America
• 2015-01-20

  Arrowhead Marsh, United States of America
• 2015-04-25

  Jenner, United States of America
• 2015-04-26

  Jenner, United States of America
• 2015-05-24

  Burnidge Forest Preserve, United States of America
• 2015-05-26

  Jon J. Duerr Forest Preserve, United States of America
• 2015-05-26

  Ferson Creek Fen, United States of America
• 2015-05-26

  Nelson Lake Forest Preserve, United States of America
• 2015-05-27

  Crabtree Nature Center, United States of America
• 2016-01-04

  Reserva Natural Laguna Cartagena, United States of America
• 2016-01-05

  Reserva de Boqueron, United States of America
• 2016-01-05

  Bosque Estatal de Maricao, United States of America
• 2016-01-24

  Heron's Head Park, United States of America
• 2016-02-06

  Golden Gate Park - Elk Glen Lake, United States of America
• 2016-05-05

  Pratt Wayne Woods, United States of America
• 2016-08-06

  Crissy Field, United States of America
• 2016-11-03

  Heron's Head Park, United States of America
• 2016-11-25

  Half Moon Bay - Pillar Point, United States of America
• 2016-12-17

  Big Branch National Wildlife Refuge, United States of America
• 2016-12-22

  Fox River - Dundee, United States of America
• 2017-01-25

  Mori Pt, United States of America
• 2017-01-29

  Heron's Head Park, United States of America
• 2017-10-21

  Golden Gate Park - Stow Lake, United States of America
• 2017-12-10

  Golden Gate Park - San Francisco Botanical Garden, United States of America
• 2018-01-01

  Fort Mason, United States of America
• 2018-01-28

  Heron's Head Park, United States of America
• 2018-02-11

  Heron's Head Park, United States of America
  
• 2018-03-17

  Lake Merced , United States of America
• 2018-05-20

  Jenner, United States of America
  
• 2018-09-09

  India Basin Shoreline Park, United States of America
• 2018-09-21

  Oceano, United States of America
• 2018-09-24

  Oceano, United States of America
• 2018-10-11

  Golden Gate Park - Middle Lake, United States of America
• 2018-11-11

  Mountain View Slough, United States of America
• 2018-12-30

  Fiscalini Ranch Preserve, United States of America
• 2019-01-20

  San Pablo Bay, United States of America
• 2019-03-01

  Thrasher Spot, United States of America
• 2019-03-02

  Patagonia, United States of America
• 2019-06-08

  Crissy Field, United States of America
• 2019-11-09

  Crissy Field, United States of America
• 2020-05-31

  Capay Valley, United States of America
• 2020-07-21

  Rogue River, United States of America
• 2020-09-14

  Pier 94, United States of America
• 2021-01-30

  Tomales Bay State Park, United States of America
• 2021-04-24

  Lake Merced , United States of America
• 2021-05-15

  Crissy Field, United States of America
• 2021-05-22

  Illinois Beach State Park, United States of America
• 2021-05-30

  Nelson Lake Forest Preserve, United States of America
• 2021-06-11

  Bishop, United States of America
• 2021-07-18

  Edwin B. Forsythe National Wildlife Refuge, United States of America
• 2021-07-19

  Stone Harbor Wetlands Institute, United States of America
• 2022-01-15

  Sacramento National Wildlife Refuge, United States of America
• 2022-01-16

  Lake Solano County Park, United States of America
• 2022-09-05

  Fort Mason, United States of America
• 2022-12-17

  Half Moon Bay - Venice Beach, United States of America
• 2023-01-03

  Golden Gate Park - San Francisco Botanical Garden, United States of America
• 2023-01-08

  Crissy Field, United States of America
• 2023-01-12

  Golden Gate Park - Lily Pond, United States of America
• 2023-01-17

  Heron's Head Park, United States of America
• 2023-05-12

  Illinois Beach State Park, United States of America
• 2023-05-18

  Cape May National Wildlife Refuge - Two Mile Beach, United States of America
• 2024-01-25

  Wakodahatchee Wetlands, United States of America
• 2024-02-02

  Laguna de Leche, Cuba
• 2024-02-03

  Cayo Coco, Cuba
  
• 2024-03-27

  Teotitlan del Valle, Mexico
• 2024-03-31

  Parque Nacional Huatulco, Mexico
• 2024-10-09

  Barranquilla Swamp, Colombia
• 2024-10-14

  Santuario de Fauna y Flora Los Flamencos, Colombia
• 2025-03-20

  Long Bay, Barbados
• 2025-07-19

  Pratt Wayne Woods, United States of America