Field Notes · Catnum 165674 · score 12 — high uncertainty
16 feet up on double crotch of cherry tree on clump of trees in a field. Composed of grasses, some wet straws, strips of muslin, lined thickly with soft dry grasses. It is 6 inches in diameter rounded by 3 1/2 inches in diameter.
Metadata · Catnum 165674
Date05 May 1919
LocalityFrankford, Philadelphia, Pennsylvania, USA
Coordinates40.014874, -75.078951 ↗ map
CollectorMiller, Richard F.
Eggs in Set3
Specimen TypeE
Incubationcommenced (transcribed as “started”)
Identificationflushed (transcribed as “by bird flushed from nest”)
Nest Height4.88 m (16 feet)
Nest Supportdouble crotch of cherry tree
Nest Materialsgrasses, wet straws, strips of muslin
Nest Liningsoft dry grasses
Nest Settingclump of trees in a field
Nest NotesNest is 6 inches in diameter rounded by 3 1/2 inches in diameter
HeaderCOLLECTION OF ERNEST A. BUTLER, PHILADELPHIA, PENNA.
Further Details761 | 243
✦ Anecdote
The nest construction includes strips of muslin, which is unusual material for American Robin nests and suggests the birds incorporated human-made fabric into their nest building.