- IORC Number
- 2015-004
- Species/Form in Question
- Slaty-backed Gull
- Scientific Name
- Larus schistisagus
- Current Status of Record:
- Accepted
- Date of Initial Sighting:
- 2015-01-11
- Date of Last Sighting:
- 2015-01-11
- Quantity:
- 1
- Age/Gender:
- Adult or near adult
- Observers(s)
- D. James Mountjoy
- Location
- On the Illinois River in East Peoria and adjacent Peoria
- Counties Observed in:
- Peoria
- Tazewell
- References
- 21st IORC Report
- Details