Table 3. Summary of birds observed to consume seeds on the London and Guelph study sites during detailed behavioral observations.
| Field location | Species | Number of individual birds observed consuming corn | Number of corn seeds consumed | ||
|---|---|---|---|---|---|
| Treated | Unknownb | Untreated | |||
| Londona | Red-winged blackbird | 1 | 0 | 1 | 0 |
| Common grackle | 1 | 0 | 0 | 5 | |
| Brown-headed cowbird | 1 | 0 | 0 | 1 | |
| Guelph | Blue jay | 1 | 1 | 1 | 0 |
| Horned lark | 1 | 0 | 0 | 2 | |
| Canada goose | 1 | 0 | 7 | 0 | |
| Common grackle | 9 | 0 | 0 | >7c | |
| House sparrow | 9 | 0 | 0 | >1d | |
| American crow | 1 | 1 | 0 | 0 | |
| Total | 25 | 2 | 9 | >15e | |
Notes:
a
There were two London sites on which field observations were not possible on Day 2 and Day 3 (site L6) and on Day 3 (site L14) due to heavy rainfall and severe thunderstorms.
b
Seed treatment status could not be visually confirmed.
c
Four of the nine common grackle consumed an undetermined amount of non-treated seeds.
d
The number of non-treated seeds consumed by the nine individual house sparrows could not be determined.
e
The total number of non-treated corn seeds consumed could not be determined as a result of the two bird species which consumed an indeterminate amount.