text Illinois Illinois Natural History Survey 2009 Ind 38 p., ills.; 26 cm.-- 38 p., ills.; 26 cm.-- Bibl.: p. 28-37. ILLINOIS NATURAL HISTORY SURVEY DUCKS NESTING BREEDING METHODS BIOLOGY ANIMAL MORPHOLOGY 598.412 Sr.598.412 ISBN978-88293-22-1 INLIS000000000001177 Converted from MARCXML to MODS version 3.5 using MARC21slim2MODS3-5.xsl (Revision 1.106 2014/12/19)