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She's back: Alice!

Thursday, April 28, 2011


One of our favorite snakes of 2010 has been spotted at the den!  Alice was coiled next to a log a short distance away from the den the afternoon of 25 April:

Alice. 25 April 2011 13:40

And later heading away to her hunting grounds for this year:
Alice. 25 April 2011 16:13

Because she gave birth last year, it is unlikely that she will stick around the same area and give birth again this year.  Hopefully she'll be a successful hunter this year, and next year, more babies?

Alice 25 April 2011.  Not so happy to see us :-(


Wednesday, April 27, 2011


*This story illustrates how we identify individual snakes and how important these aggregation sites are to the rattlesnakes.

29 May 2010.  One the first snakes marked at this site was Zona, a female less than a year old when we first encountered her.

Zona 29 May 2010

Zona was sitting on a downed log a few meters from the den where many Arizona black rattlesnakes spend their winter, and two rookeries (where female rattlesnakes give birth to their young).  From the way she was positioned on the log, she was probably hunting for small lizards.  Zona was photographed and her rattle marked with purple paint so that she could be identified if we crossed paths again.

27 September 2010.  That fall, Zona was one of the first rattlesnakes to return to the den.  We found her on the opposite side of the den, stretched out along one of the large boulders.  Only a tiny bit of purple paint remained on her rattle, but several aberrancies in her pattern confirmed who this little was.

Zona, 29 May (left) and 27 September (right; photo by J. Smith) 2010. Like-colored circles indicate natural pattern aberrancies used to identify this snake.

Zona had nearly doubled in size over the intervening four months, but her dorsal blotches did not change in shape or number.  We took a small sample of blood to determine her relatedness to other rattlesnakes at the den and wished her well.

April 2011.  The rattlesnakes have just started basking at the den again and we've seen a few familiar faces, including Zona:

Zona, 23 April 2011, emerging from the den.  Can you see the same weird blotches circled in the photos above?

SuizoReport: Black Velvet

Thursday, April 21, 2011


SuizoReport: Black Velvet: "A new religion that will bring you to your knees Black Velvet if you please........... Howdy Herpers, On 16 April, John Slone escorted ..."