I said it because I interacted with them and they were almost entirely non-English speaking - indicating they weren't born in America and probably had very little knowledge of native wildlife. Yet they saw the value in protecting a creature they knew nothing about, found peculiar and that, for all intents and purposes, affected their ability to do their job. Something many native people would dismiss/destroy/not care about because "its just a killdeer." So I found their efforts and interest both inspiring and notable considering their identities. The same identities (male, non-English-speaking Mexican) that I see a lot of people criticize, curse at, fear, and complain for being here.
I felt it was an important detail to the story and observation for those reasons.
(I don't want this to go off the rails into some political or opinion-laden string of discussions - i just wanted to add context).
Edit to add: There were non-Mexican workers and site directors that didn't care about the nest. It was specifically a handful of the Hispanic workers that were monitoring it, making sure it was marked, and helping direct equipment around it.
