Long-billed Curlew chick

As can be seen in these pics this Long-billed Curlew chick is still in it's hatchling stage down. This is a very young chick, at least younger than 2-3 weeks old (age when female leaves the parenting to the male) and I suspect only a week or so old. Note: I used my longest lens combination (that is the equivalent of about 900mm) to photograph this Federally listed Species of Concern so I was usually over a hundred feet from the chick (except when I was photographing from inside my car and the chick approached within about 60 feet of my stationary car parked on road--that is when I got the top pic) then cropped the pics to enlarge them. SeEtta