i think the others have covered the topic pretty well, but i would add that it might not be a good idea to post observations of nesting birds, in case there are others who might try to find the birds and do bad things.
…
if you’re interested in roadrunner videos, this person was able to get a camera right next to a nest, seemingly without spooking the birds: https://www.youtube.com/watch?v=3oRopZ4X-9s. (this person also has tons of other similar roadrunner videos.) i guess this proves that it’s possible to observe nesting roadrunners very intimately and over a long period without causing the birds to freak out and abandon the nest, though i’m not advocating trying this yourself, especially if you’re not sure of what you’re doing.
here’s something that indicates that roadrunners will abandon nests if they are trapped: http://www.prbo.org/calpif/htmldocs/species/scrub/greater_roadrunner.html. (i gather it’s very hard to trap roadrunners. so getting caught must be really stressful for them.)
and here are some notes about roadrunners in general, with a section on nesting: http://www.wildlife.state.nm.us/download/education/conservation/wildlife-notes/birds/roadrunner.pdf.