| Average
Age of Youngest Ultralight-led Chicks at Departure
How
old was this year's youngest bird at departure? And how
can you calculate an average age of the youngest birds at departure?
Add up the number of days between the hatch-date of the youngest bird
from every year and the date of migration departure for that same season.
We've done all but the Class of 2009. Try it!
- What
is the overall average age for youngest birds at departure?
- How might
this affect the performance of the group when they leave on migration?
What other factors might affect their performance at the beginning
of migration? Check
answers
| Year |
Latest
Hatch Date |
Departure
Date |
Age
of Youngest At Departure |
| 2009 |
? |
? |
? |
| 2008 |
June
15 |
Oct.
17 |
124
days |
| 2007 |
June
10 |
Oct.
13 |
125
days |
| 2006 |
May
31 |
Oct.
5 |
127
days |
| 2005 |
June
3 |
Oct.
14 |
133
days |
| 2004 |
June
5 |
Oct.
10 |
127
days |
| 2003 |
May
23 |
Oct.
16 |
146
days |
| 2002 |
May
21 |
Oct.
13 |
145
days |
| 2001 |
May
24 |
Oct.
17 |
146
days |
Total |
? |
Average
Age of Youngest For ALL Seasons at Departure |
? |
Journey
North is pleased to feature this educational adventure made possible
by the
Whooping Crane Eastern Partnership (WCEP).
|