491 
1921.] Bird-Migration by the Marking Method. 
TABLE YI. 
Age Analysis of Reappearances of Lapwings marked as 
chicks in Scotland or the north of England. 
Year of the 
bird’s life. 
Area of marking* 
June- j Oct.- 
Sept. Feb. 
* 
England 
and 
Wales. 
I 
Ireland, j 
S.W. 
France 
and N. 
Spain. 
Portugal. 
Total. 
First year ... 
6 
1 
1 
16 
3 
6 
33 
! 
Second year... 
1 
1 
2 
7 
BBS 
1 
12 
Third year ... 1 
•2 
1 
1 
3 
K-. 
1 
8 
Fourth year... 
I; — 1 1 
1 
' lip 
1 
— 
— 
2 
Fifth year ... 
1 
— 
1 
1 
j B 
— 
3 
| 
Sixth year ... 
JHiii 
1 
1 
1 
■— 1 , 
' — 
3 
( # See footnote to Table IV.) 
The decreasing number o£ records in successive years 
naturally follows, of course, from the decreased total of 
survivors, but it may also represent a lower mortality rate 
after the first season. The records for the first three seasons 
suffice to show that age is an unimportant factor in de¬ 
termining the character of the movements performed. 
The following table is similar to the foregoing, but is 
based on calendar years :— 
TABLE VII. 
Annual Analysis of Reappearances of Lapwings marked as 
chicks in Scotland and the north of England. 
I' 
Year of 
1 Reappear¬ 
ance. 
Area of ] 
June- 
Sept. 
Marking, j 
Oct.- 
Feb. 
^'England 
and 
Wales. 
j 
Ireland. 
S.W. 
France 
and N. 
Spain. 
Portugal 
Total. 
1909-10... 
1 
1 
1910-11... 
2 
— ■ 
,— 
4 
...2 .. 
8 
1911-12... 
Hfifl ' 
1 
— 
3 
. 1 4 Y ’ 
4 
1912-13... 
" ' ,-r- 
— 
1 
4 
H — 
1 
6 
1913-14... 
4 
— 
— 
5 
3 
3 
15 
1914-15... 
2 
| ■ _L_ 
1 
5 
8 
1915-16... 
1 
3 
2 
1 
_ 
I— . . 
7 
1916-17... 
< ■ A-A- 
1 
4 
- — 
1 
6 
1917-18... 
' — 
' fA; ■ i 
1 
1 
2 
1918-19... 
. — . 
1 
— 
1 
— 
■-AY' 
2 
! 1919-20... 
1 
\ 
1 
1 
!— 
2 
(* See footnote to Table IV.) 
