8 
Nebraska Bird Review 
TABLE 3 
GROWTH RATES FOR WEIGHT AND OTHER CHARACTERISTICS IN GOLDFINCH NESTLINGS 
Day 
Wei^t 
Wing 
Toe 
Span Tarsus 
Total 
Length 
Lower 
Nbndible 
Gape 
Width 
Mandible Tip 
to Nostril 
1 
.43 
.05 
.14 
.19 
.14 
.10 
.11 
.07 
2 
.36 
.27 
.18 
.17 
.11 
.13 
.11 
.17 
3 
.30 
.22 
.20 
.18 
.11 
.10 
.06 
.14 
4 
.24 
.22 
.16 
.16 
.10 
.09 
.06 
.06 
5 
.22 
.31 
.15 
.14 
.08 
.09 
.03 
.05 
6 
.19 
.19 
.11 
.06 
.07 
.05 
.05 
.17 
7 
.16 
.20 
.06 
.04 
.06 
.05 
.01 
.06 
8 
.12 
.15 
.05 
.03 
.05 
.06 
.01 
.03 
9 
.07 
.06 
.02 
.01 
.06 
.03 
.01 
.11 
10 
.05 
.13 
.02 
.06 
.05 
^.03 
.04 
11 
.02 
- 
.01 
.05 
.01 
-.01 
.02 
12 
.04 
- 
- 
.04 
- 
-.02 
.04 
13 
.04 
- 
- 
.03 
- 
-.01 
.07 
Index* . 17 
.18 
.10 
.11 
.07 
.07 
.03 
.08 
* Index calculated only for the days over which the measurement is shown as 
changing. The wing did grow beyond day 10 but was not measured. 
TABLE 4 
PROJECTION AND FRINGING OF lEATHER TRACTS IN GOLDFINCH NESTLINGS 
GIVEN 
IN 
PER 
CENT 
OF INDIVIDUALS 
VJHERE IT 
' HAS 
OCCURRED 
Day N 
Alar Humeral 
P F P F 
Capital 
P F 
Spinal 
P F 
Ventral 
P F 
Crural 
P F 
Femoral 
P F 
Caudal 
P F 
2 
62 
2 
3 
59 
40 
4 
57 
94 
- 
49 
- 
- 
- 
12 
- 
57 
- 
- 
- 
23 
- 
- 
- 
5 
58 
100 
- 
96 
- 
11 
- 
81 
9 
100 
35 
63 
- 
88 
16 
65 
- 
6 
49 
- 
53 
100 
53 
77 
- 
100 
49 
- 
91 
98 
47 
100 
89 
97 
13 
7 
49 
- 
97 
- 
100 
100 
22 
- 
97 
- 
100 
100 
97 
- 
100 
100 
61 
8 
49 
- 
100 
- 
- 
- 
89 
- 
100 
- 
- 
- 
100 
- 
- 
- 
100 
9 
49 
_ 
_ 
_ 
_ 
_ 
100 
_ 
_ 
- 
_ 
- 
- 
- 
- 
- 
- 
