two-source Jolly–Seber model
Madon, B., Gimenez, O., McArdle, B., C. Baker, S., & Garrigue, C.. (2011).
A new method for estimating animal abundance with two sources of data in capture-recapture studies.
Methods in Ecology and Evolution,
2(4), 390 - 400. doi:10.1111/j.2041-210X.2011.00091.x