Cross-Species Comparison

American Robin · Gray Catbird · Northern Cardinal  ·  2,736 records combined

AMRO  American Robin Turdus migratorius
GRCA  Gray Catbird Dumetella carolinensis
NOCA  Northern Cardinal Cardinalis cardinalis
Collection Overview
Egg Sets
American Robin
Turdus migratorius
1078
1851–2013  ·  278 collectors
Egg Sets
Gray Catbird
Dumetella carolinensis
779
1876–1990  ·  208 collectors
Egg Sets
Northern Cardinal
Cardinalis cardinalis
879
1883–1982  ·  203 collectors
Incubation Stages
Stage distribution (% of records with known stage)
Stage breakdown by species — raw counts
Nest Height
Height distribution (metres)
Height buckets — raw counts per species
Nest Structure
Top nest support types
Top nest materials
Collectors & Date Ranges
Top collectors — records per species
Collecting activity by decade