Hiya
Have made my own , using Filemaker Pro for the last 20 odd years, recently also made a version in MS Access.
Only log my sightings - so you have to find the con and type details yourself - but I prefer it that way otherwise it takes half the fun away from sporring .
Have over 70,000 records , no problem with sorting or reporting.
If you would like a blank copy let me know
best regards