All those listed below are considered to be different individuals, however, some duplication is inevitable:
- second-winter, January 4th (also seen December 2016)
- adult, January 4th
- adult, January 4th & 6th
- second-winter, January 6th
- adult, January 11th
- sub-adult, January 18th
- adult, January 27th
- first-winter, January 27th & 28th and February 7th
- third-winter, February 3rd & 4th
- first-winter, February 3rd
- first-winter, February 4th & 7th
- first-winter, February 4th
- first-winter, February 6th
- first-winter, February 7th
- first-winter, February 7th
- second-winter, February 7th
- first-winter, February 18th
- first-winter, February 18th
- first-winter, February 18th
- second-winter, February 18th
- first-winter, March 25th
- first-winter, March 25th and April 1st
- first-winter, April 8th (German colour-ring X312)
- first-winter, April 15th
- first-winter, April 15th
- first-winter, April 29th
- first-summer, May 13th
- first-summer, May 13th