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Mexican species
| Great Blue Heron (Ardea herodias) | |||
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| Subspecies | Hide subspecies | ||
| fannini | herodias (Great Blue) | SE Alaska to coastal Washington | |
| herodias | herodias (Great Blue) | S Canada to s Baja California and Central America | |
| wardi | herodias (Great Blue) | S-central US to Gulf Coast and Florida | |
| cognata | herodias (Great Blue) | Galapagos Islands | |
| occidentalis | occidentalis (Great White) | S Florida through West Indies to islands off Venezuela | |
| Endemic status | |||
| Sound Guide | |||
| Comment | Wurdemann's form is an interbreed between a normal colored individual and a white form of the species. | ||
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