Whooping Crane Migrational Habitat Use Draft ‎(2)‎

• File Number: 8461.100
• Description: Adaptive Management Workgroup
• State: CO
• Basin: South Platte
• Water Division: 1
• Date: 8/6/2008
• Author: Shay Howlin, Clayton Derby, Dale Strickland, Western Ecosystems Technology, Inc.
• Title: Whooping Crane Migrational Habitat Use Draft
• Water Supply Pro - Doc Type: Report/Study

Table 5. Number of observations of crane groups by stratum and by source during the
Cooperative Agreement period, 2001-2006.
Number of
wetted
Number of channel Number Number
Number of observations observations of of
observations in the in the Program USFWS
Number of in the wetted probability probability Crane Crane
Survey observations channel sample sample Groups* Groups*
2001SP 40 9 4 4 2 1
2001FA 1 1 1 1 1 1
2002SP 37 12 11 11 13 1
2002FA 98 46 11 6 7 7
2003FA 2 1 1 1 1 1
2004SP 1 1 1 1 1 1
2004FA 2 0 1 0 2 1
2005SP 21 9 5 5 13 3
2005FA 1 1 1 1 1 1
2006SP 76 28 24 22 49 4
2006FA 74 42 12 6 26 2
Total 353 150 72 58 116 23
* The designation of individual crane groups for the Program monitoring crews was inconsistent across surveys (see
Appendix A) while designation of individual crane groups for the USFWS was based on location, size of
group, and biological opinion.
Table 6. Number of observations of crane group locations in
each land cover category, during the Cooperative
Agreement period, 2001-2006. Land cover categories
were amalgamated from the vegetation classes in the
Bureau of Reclamation (BOR) land use/cover GIS based
on 1998 photography (USBOR 2000), see text for exact
description of BOR vegetation classes in each land cover
category.
Land Cover Category Count Percent
Agriculture 143 44.69
Grass 21 6.56
Shrub/forest 3 0.94
Wet grass 3 0.94
Wetted channel 150 46.88
23