View:ResearchCollection
Egg Sets
779
Date Range
1876–1990
With Field Notes
758
97% of collection
Featured Record · 181 notable records
The collector noted this as the only 5-egg clutch of Gray Catbird they ever found, which is notable since Gray Catbirds typically lay 3-4 eggs, making a 5-egg clutch quite rare.
19112 · Michigan · 26 May 1901 · Wood, Walter
Weekly collecting activity by incubation stage · n=674 records with day, month and incubation stage
freshslightcommencedone_thirdhalftwo_thirdsadvancednear_hatchinghatched
Nest Support (top 10) · n=149
bush35
clump of blackberry bushes18
blackberry bush15
hedge15
thorn bush14
apple tree13
willow11
small bush10
cedar9
clump of thick blackberry bushes9
Nest Materials (top 10) · n=1035
twigs218
leaves148
bark strips117
grass110
sticks107
dry leaves100
weed stems74
grass stems70
dead leaves48
bark43
Nest Height (metres) · n=577
0–0.5 m18
0.5–1 m112
1–1.5 m161
1.5–2 m182
2–2.5 m52
2.5–3 m5
3+ m47
Clutch Size · n=779
0 eggs0
1 egg2
2 eggs11
3 eggs140
4 eggs498
5 eggs122
6 eggs2
unknown4
Ask the Collection
Claude · conversation remembered
I know this collection — 779 GRCA egg sets, 1876–1990. Ask me about collectors, nesting habits, localities, incubation stages, or anything about Dumetella carolinensis biology.
Try: "Who collected the most records?" · "What materials are most common in nests?" · "Tell me about nests near streams" ·