===Methods===

It is mentioned that approaches to nests were made in such a way as to prevent attracting predators, but no mention is made of whether they also made attempts to avoid disturbing the oystercatchers themselves. This seems especially challenging given that they want to accurately count both whether there's a pair at the nest and the number of eggs present (since the latter would require disturbance to see how many eggs there were). The different survey periods also gave me pause. Some of the estimates listed in the paragraph "I estimated several components..." feel like they are too hand-wavy (such as 1990 nest productivity). The fact that feeding rates were measured "opportunistically" feels odd as well.

=="Actual"==