Hello Dear,

these information might me helpful.

1. Capture–recapture methods are often used to estimate population size from repeated sampling.

2. Explicit capture–recapture encounter histories for locations of unmarked animals for estimating population size with conventional capture–recapture models. 

3. Apply this method to data from a point-coordinate capture–recapture survey of burrowing animals USA. 

they are much used in censuses, the census being the first capture and the post- enumeration survey (PES) being the second capture, to estimate the size of the unknown census target population. In fact, it typically happens that some eligible units are erroneously excluded from the census.

Please see:

http://www.scielo.br/pdf/csp/v22n4/08.pdf

http://www.phidot.org/software/cmr_sampling_review.pdf

http://www.vogelwarte.ch/assets/files/projekte/artenfoerderung/ag-waldhuehner/Mollet_etal_2015_PlosONE_PopulationSizeEstimationCapercaillieSCROneFieldSample.pdf

http://www.personal.soton.ac.uk/dab1f10/RocchettiAlfoBoehning.pdf