Audubon’s Shearwater Seasonal Occurrence and Geographic Distribution

Audubon’s Shearwater Puffinus Iherminieri

Status: Rare to uncommon in offshore Gulf of Mexico waters in summer and fall (August – September). Less common than Cory’s Shearwater.

Habitat: pelagic waters of the Gulf of Mexico, usually where the water depth is greater than 100 fathoms. Unlike Cory’s, this species is very rarely seen in the relatively shallow waters over the continental shelf. Audubon’s Shearwater prefers warmer waters than Manx Shearwater.

Similar Species: Audubon’s Shearwater most closely resembles Manx Shearwater. Audubon’s differs from Manx, by having relatively shorter wings, longer tail, and most importantly black undertail coverts.

© Copyright  Brad McKinney  31 October 31, 2004 (updated Sep 2009)


The graph below shows the number and date of all Audubon’s Shearwater sightings on all Texas Pelagics from 1992 to 2015:

AUSH Graph2015


This map shows the geographic distribution of Audubon’s Shearwater sightings (green cirlces) on 27 Texas Pelagics mostly from South Padre Island, but also includes 1 trip from Port Aransas and 2 trips from Port O’Connor. Sighting coordinates from the remaining 25 + Texas Pelagics are not available.

Audubon’s Shearwaters are more restricted to deep pelagic waters than are Audubon’s Shearwaters which occur regularily over the middle to outer shelf

View Shearwater Distribution in a larger map

Click on the box in the upper left of the map to view the map legend.

Click on each sighting symbol and the data label will appear showing the time, date and the number of birds seen.

Click on the link on the bottom of the map to view a larger map


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