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|Royal Tern (Thalasseus maximus)|
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The map shows the number of species registered per state and entire Mexico. Click each of the states to see the list.
Island species (Guadalupe, Revillagigedos, Tres Marías and Cozumel), are included in the respective state lists (Baja California, Colima, Nayarit and Quintana Roo).
|Subspecies||Show subspecies Hide subspecies|
|albididorsalis||albididorsalis (African)||Coastal Mauritania to Guinea; winters to Namibia|
|maximus||maximus (American)||Coastal US to W Indies, Guianas, Brazil; winters to Argentina|
|Photo Sound Video||Yes|
In general the literature says that adult birds don't acquire full alternate plumage until march-april. This is not the case with birds on the Pacific coast around Colima. Here I see a large percentage of birds with a full dark crown already in January-February.
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