Bird eggs collection in Minot State University, updated and extended in 2018:
First column -- egg maximal length, mm
Second column -- egg maximal width, mm
Third column -- species ID
Each ID has slighly different color:
ID	COLOR	SPOTS
140	yellow	NA
141	yellow	NA
143	yellow	NA
198	white	NA
221	yellow	brown
226	brown	black
273	brown	black
284	white	NA
305	yellow	grey
308	brown	brown
309	brown	NA
316a	white	NA
331	white	NA
366	white	NA
412	white	NA
475	yellow	brown
622	yellow	brown
hp	yellow	NA