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title: "Identifying Northern and Southern Giant Petrels with a DVD"
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# Identifying Northern and Southern Giant Petrels with a DVD

Northern *Macronectes halli* and Southern *M. giganteus* Giant Petrels are similar-looking sister species which can sometimes be difficult to tell apart ([click here](https://www.acap.aq/acap-species) to access their ACAP Species Assessment texts).  The different bill-tip colour (see images below) is the main diagnostic feature.

 [Scilly Pelagics](http://www.scillypelagics.com/index.html) has published a DVD video with an accompanying 40-page booklet that will help separate these two ACAP-listed species.  The production entitled *Fulmarine Petrels* has been produced by Bob Flood and Ashley Fisher, who are based in the Isles of Scilly in the United Kingdom.

 [Click here](http://www.scillypelagics.com/thefulmars.html) to learn more of this new product.

 ![](https://www.acap.aq/images/stories/acap/Birds/Petrels/N/Northern_Giant_Petrel_by_Marienne_de_Villiers.jpg "Northern Giant Petrel at Marion Island.  Photograph by Marienne de Villiers")

 ![](https://www.acap.aq/images/stories/acap/Birds/Petrels/S/Southern_Giant_Petrel_Gough_Island_by_John_Cooper.jpg "Southern Giant Petrel at Gough Island.  Photograph by John Cooper")

 Also see:

 Carlos, C.J. & Voisin, J.-F. 2008.  Identifying giant petrels, *Macronectes giganteus* and *M. halli*, in the field and in the hand.  *Seabird* 21: 1-15.

 *John Cooper, ACAP Information Officer, 26 October 2010*