Another successful attempt at daylight thermalling for Jack Snipe resulted in the capture of an adult and juvenile. This allowed for some nice comparison photos.
Adult on right with cleaner, more extensive pale feathering on head
Undertail coverts, brown streaks along shafts of some feathers for adult,
very little on undertail coverts of juvenile
Juvenile has narrower white tips to primary coverts
More strongly marked throat feathers on adult
There was quite a weight difference between these two, adult 48.4g and juvenile a very healthy 73.3g.