Migration Dynamics of the Whooping Crane

• Description: Prepared for Interstate Task Force on Endangered Species ‎(related to the Platte River Recovery Implementation Program or PRRIP)‎ - Colorado Water Congress, Nebraska Water Resources Association, Wyoming Water Development Association
• State: CO
• State: NE
• State: WY
• Basin: South Platte
• Water Division: 1
• Date: 12/1/1985
• Author: EA Engineering, Science, and Technology, Inc.
• Title: Migration Dynamics of the Whooping Crane with Emphasis on the Use of the Platte River in Nebraska
• Water Supply Pro - Doc Type: Report/Study

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1
TABLE 2 -1 STOPOVER DURATION OF MIGRANT WHOOPING CRANES MONITORED DURING RADIO- TRACKING SURVEYS, 1981 -
1OQA(a)
... M. •1
Overni ght(b )
3 day s
4 days
5 days
6 day s
7 day s
8 day s
10 day s
11 days
13 days
15 days
18 day s
19 day s
22 days
Fall Migration
Canada United States
No. of No. of
stto_povers -5-"o overs W
Sorino Mtion
Canada United States
No. of No. of
Stopovers M Stopovers M
20
(69.0)
28
6
21
2
2
(6.9)
0
p
1
2
1
(3.4)
0
p
__
2
0
--
0
1
p
__
0
0
--
0
p
__
1
0
--
0
1
0
1
2
(3.4)
(6.9)
1
0
0
p
0
1
0
0
1
0
0
1
-'
(3.4)
0
0
0
0
1
(3.4)
0
p
p
__
p
1
(3.4)
0
--
_
--
0
--
�
--
(93.3)
(3.3)
(3_3)
(60 0)
(10.0)
(10 0)
(10.0)
(10.0)
30 (100) 10 (100) 29
29 (100)
49% i n Canada
Total Fall Stopovers = 59 151% in U. S. in Canada
Total Spring Stopovers = 3�(c) f74% in U. S.
Total Stopovers (both migrati ons) � = 98
(72.4)
(6.9)
(6.9)
(6.9)
(3.4)
(100)
(a) Data cot mpiled from U.S. Fish and Wildliebetween ice
lategafternoon and Appendi
migration
(b) Whooping cranes arrive at stopover sites
i n the morning, between first 1 ight and mid-morning. Thus, the actual duration of most overnight
stopovers is probably on the order of 12 to 16 hours.
(c) Two of the four spring fl ight - tracki n9 surkeysTh (Appendix ) were di scon percentageeofre the
birds arrived at Wood Buffalo National
Canadian stopovers are undoubtedly somewhat higher than indicated.