Consider flagging records with unusual numbers of birds

[barthoekstra]

Ideally records are flagged statistically, but that is quite time-intensive to implement anytime soon. Alternatively, we can just flag records based on a simple set of rules, such as:

• Any ‘rarity’ with count > 2 (e.g. EgyptianV, CrestedHB, ImperialE)
• Any large eagle that is not LesserSE with count > 2
• ...

[barthoekstra]

Interesting approach/article series: https://towardsdatascience.com/counts-outlier-detector-interpretable-outlier-detection-ead0d469557a