https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6675766/

[Linked Image from photos.smugmug.com]

Another source:
Whole blood levels >0.2 ppm suggest lead toxicity. Whole blood levels >0.4 to 0.6 ppm are considered diagnostic for lead toxicity.
Another sources suggested levels >0.2 ppm with compatible symptoms is diagnostic for lead toxicity.
(20 microgram/deciliter = 0.2 part/million)

I have no idea the point you are trying to make with this (link to the abstract).
https://dr.lib.iastate.edu/entities/publication/88187710-c019-4aa5-9bdb-94fd6351ddbe/full
The purpose of the study was to investigate the use of fecal sampling to avoid having to catch and draw blood from free flying eagles. Are you saying that the study was retracted, or proved to have been falsified?
Have you found any study regarding lead in waterfowl, raptors or condors that was retracted or proven to have been falsified?


Mostly good news for Mike smile
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4139699/

More good news re: risk of lead from consumption of upland game
Dove in South Carolina
https://www.sciencedirect.com/science/article/abs/pii/S0013935197937890