If I were you, I would only ever cite peer reviewed articles published in international Journals whose publication processes are known to be rigourous...

Wikipedia is edited by anyone at any time. This disqualifies it from being a credible source.

https://connorsstate.edu/disted/wikipedia/

Please find the criteria for selecting citable sources here

https://isu.libguides.com/collegeresearch/sourcecriteria

So this means tht the references must be solid, peer reviewed and traceable in the original form and cited by the author ?

This means this precludes personal ebird checklits as being credibke citable references i suppose.

https://www.researchgate.net/post/Can_we_use_Wikipedia_articles_as_references_in_a_research_paper

Do your research properly and wisely. Remember that any encyclopedia is a starting point for research, not an ending point.

Use your judgment. Remember that all sources have to be evaluated.

https://en.wikipedia.org/wiki/Wikipedia:Academic_use

Will ebird personal checklist qualifiy as a reference, in the light of above answers ?

These ebird checklists can be modified, edited and deleted anytime.