Journey North Whooping Crane Migration

Eastern Flock Whooping Crane Pairs Incubating
Spring 2009

PAIR ESTIMATED DATE INCUBATION BEGAN Nest Status 6/17/09

#505 and 415 April 2 failed 4/24

#313 and #318
April 7
May ? re-nest First nest failed 4/19. They re-nested but the second nest also failed (5/17).

#211 and #217

April 7
May 13-17 (?) re-nest

First nest failed 4/24; Second nest hatched W2-09 on June 14 or 15. The shell of the second egg was punctured, and the fully developed chick did not hatch. Sadly, W2-09 vanished at two weeks of age despite good parental care. (See photo >>)

#309 and 403 April 8
May 23 re-nest First nest failed 5/3* but they re-nested. Their second nest failed June 14 but this pair's eggs hatched into #906 and #908 for the ultralight-led flock!

#303 and 317 April 8
May 21 re-nest
First nest failed 4/24; re-nested but abandoned that nest June 7. A rescued egg was incubated in Maryland for the ultralight flock but the chick did not survive.

#401 and 508 April 9 failed 4/24

#408 and 519 April 8
Possible re-nest First nest failed 4/21; possibly re-nesting, but no location ever confirmed.

#212 and 419 April 9
May 21 re-nest
First nest failed 4/24; They re-nested and their 2 infertile eggs were replace with 1 fertile egg from ICF on June 11. This chick hatched June 12 and is named W1-09 (Wild #1 in 2009).

#213 and 218 April 16 failed 4/24

#311 and 312 April 20 failed 4/24

#501 and 105 April 21 failed 4/24

#310 and W601 Nest built unknown

NOTE: See red type above for updates.

Nesting History, Eastern Flock

2009
• Rescued eggs from first failed nest of #309 & #403 hatched into chicks 906 and 908!

2008 11 pairs incubated; all nests failed >>

2007 4 pairs incubated

2006 5 pairs incubated

2005 2 pairs incubated

*The two eggs were retrieved in time to continue incubation in captive breeding center where the new chicks could be cared for by experts and become part of the ultralight-led Class of 2009.

Journal Questions

What three methods have increased the number of Whooping cranes in this new flock, begun in 2001 with the first human-assisted migration of an endangered species?
How do you think the biologists will try to improve the nesting troubles?