| |
Percent
|
|---|
|
Season
|
Wake
|
Drowsy
|
SWS
|
REM
|
|---|
|
Winter
|
48.3%
|
14.9%
|
36.6%
|
0.168%
|
| |
± 2.2%
|
± 0.6%
|
± 2.2%
|
0.020%
|
|
Spring
|
66.8%
|
15.3%
|
17.8%
|
0.108%
|
| |
± 4.5%
|
± 5.6%
|
± 3.3%
|
0.029%
|
|
Summer
|
73.1%
|
12.3%
|
14.6%
|
0.068%
|
| |
± 4.4%
|
± 6.0%
|
± 2.3%
|
0.035%
|
|
Fall
|
67.1%
|
14.0%
|
18.8%
|
0.147%
|
| |
± 5.6%
|
± 0.5%
|
± 5.1%
|
0.047%
|
| |
Hours
|
|
Season
|
Wake
|
Drowsy
|
Sleep
|
Daylight
|
|
Winter
|
11.6
|
3.58
|
8.8
|
9
|
| |
± 0.54
|
± 0.15
|
± 0.53
| |
|
Spring
|
16.02
|
3.67
|
4.28
|
13
|
| |
± 1.2
|
± 1.07
|
± 0.8
| |
|
Summer
|
17.53
|
2.96
|
3.51
|
21
|
| |
± 1.05
|
± 1.44
|
± 0.57
| |
|
Fall
|
16.13
|
3.36
|
4.56
|
14.29
|
| |
± 1.21
|
± 0.13
|
± 1.38
|
± 1.02
|
- (Top) Average percentage (mean ± SEM) of 24-hour recording time spent in each behavioral state across season. (Bottom) Number of hours per 24-hour recording time that birds spent in each vigilance state and the corresponding length of daylight. REM has been added to SWS and labeled as "sleep", since REM sleep amounts were minimal throughout. (winter n = 4, spring n = 5, summer n = 4, fall n = 3).
