TY  - GEN
AU  - HAWKINS,T H
TI  - Effects of light intensity and day-length on reproduction in the English sparrow
SN  - 0028-0836
PY  - 2008///0129
KW  - Animals
KW  - Light
KW  - Passeriformes
KW  - Reproduction
KW  - Seasons
KW  - Sparrows
N1  - Publication Type: Journal Article
UR  - https://doi.org/10.1038/163966b0
ER  -