Masked Boobies,
46 mi SE of South Pass
Second summer(?) Pomarine Jaeger, 30 mi SE of South Pass
Click on the aboveimages for (very) large versions.

Another image of the jaeger, showing (in original at least) heavily
barred tail and coverts

"Mystery storm-petrel, 32 mi SE of South Pass

Another rendition of the same photograph

Immature Masked Booby

Two of the strangest birds seen on the trip!!