Corvid Specimen Pictures from LSU

<body topmargin=0 leftmargin=0 marginheight=0 marginwidth=0> <table cellpadding=0 cellspacing=0 border=0 height="100%"><tr> <td valign="top" width=200 BGCOLOR="#003333" TEXT="#F7F7FF" background="096d4c00dduajq.gif"> <div> <TABLE BORDER="0" CELLPADDING="2" CELLSPACING="0" WIDTH="95" BORDERCOLORLIGHT="#C0C0C0" BORDERCOLORDARK="#808080" FRAME="BOX" RULES="ALL" ALIGN="BOTTOM" HSPACE="0" VSPACE="0" > <tR> <tD VALIGN=TOP HEIGHT= 46 WIDTH="91"><IMG BORDER="0" SRC="1x1.gif" HEIGHT="46" ALIGN="bottom" WIDTH="91" HSPACE="0" VSPACE="0"></tD> </tR> </TABLE></div> <bR> <bR> </td> <td valign="top" BGCOLOR="#FFFFFF" TEXT="#080000"> <div> <FONT SIZE="5" COLOR="#003333" FACE="Arial" ><B>The Fauna and Flora of Kerr County, Texas</B></FONT>     |     <A HREF="index.htm" TARGET="_top" TITLE="The Fauna and Flora of Kerr County, Texa"><U>home</U></A></div> <div>                                                   </div> <div> Corvid Specimen Pictures from LSU</div> <div> <B>These photos are of specimens from the Louisiana State University Museum of Zoology in Baton Rouge, January 2003. Many thanks to Dr. Van Remsen, Dr. Steve Cardiff, Dr. Donna Dittmann, and Kelly Bryan for the opportunity to study these and many other specimens.</B></div> <bR> <DIV ALIGN="LEFT"></DIV> <div> <B><IMG SRC="10688a270.jpg" border=0 width="394" height="551" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"><IMG SRC="106a7e270.jpg" border=0 width="382" height="551" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></div> <bR> <div> <B>The picture above left is a series of four Chihuahuan Ravens, </B><I><B>Corvus cryptoleucus, </B></I><B>showing a range of wear to the nasal bristles. The arrows point to the ends of the longest bristles. The picture on the right shows two Chihuahuan Ravens above and two Common Ravens, </B><I><B>Corvus corax, </B></I><B>below. Note the relative lengths of the nasal bristles among the group. The top Chihuahuan Raven has very worn bristles. The second Chihuahuan has bristle lengths in the more expected range. Note also slight differences in the overall shape and aspect of the bills, and differences in color -- the Chihuahuans have a brown cast to the plumage, while the Commons have a gunmetal black color with more blue and purple highlights. The picture below shows the same group of two Chihuahuans and two Commons for size and additional color comparisons between the two species. Some evidence of white neck feathering can be seen in the Chihuahuans; and patterning can be seen in the breast feathers of both. </B><B>These are all digital photos.</B></div> <DIV ALIGN="LEFT"></DIV> <div> <I><B>All photos by tony gallucci</B></I></div> <bR> <div> <B>Left photo, specimens top to bottom</B></div> <bR> <div> <B>LSU5150, MX: Coahuila: Monterrey, 12 April 1941, <IMG SRC="106d1a1a0.jpg" border=0 width="26" height="26" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></div> <div> <B>LSU13485, MX: Coahuila: Saltillo, 7500', 17 April 1941, <IMG SRC="106f18180.jpg" border=0 width="24" height="24" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></div> <div> <B>LSU11724, MX: San Luis Potosi: Villa de Reyes, 6 August 1947, </B><B><IMG SRC="106f18180.jpg" border=0 width="24" height="24" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></div> <div> <B>LSU165319, USA: Texas: Webb County, 32 mi. NW of Laredo, 15 May 1998, </B><B><IMG SRC="106d1a1a0.jpg" border=0 width="26" height="26" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></div> <bR> <bR> <bR> <bR> <div> <B>Right and below photos, specimens top to bottom</B></div> <bR> <div> <B>LSU13485, MX: Coahuila, Saltillo, 7500', 17 April 1941, <IMG SRC="106f18180.jpg" border=0 width="24" height="24" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></div> <div> <B>LSU11724, MX: San Luis Potosi, Villa de Reyes, 6 August 1947, <IMG SRC="106f18180.jpg" border=0 width="24" height="24" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></div> <div> <B>LSU46356, MX: Sonora: Algodones, 1 March 1948, <IMG SRC="106d1a1a0.jpg" border=0 width="26" height="26" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></div> <div> <B>LSU11722, MS: San Luis Potosi: Pendencia, 2 Dceember 1946, <IMG SRC="106d1a1a0.jpg" border=0 width="26" height="26" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></div> <bR> <bR> <bR> <bR> <DIV ALIGN="LEFT"></DIV> <div> <B><IMG SRC="106b58de0.jpg" border=0 width="600" height="478" ALIGN="BOTTOM" HSPACE="0" VSPACE="0"></B></div> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> <bR> </td> </tr></table></body>