Fig. 2
From: A description of the gross pathology of drowning and other causes of mortality in seabirds
Variation in appearance of the fluid in the air sacs of drowned birds. These three GN divers died in the same incident and were submitted freshly dead. a: clear fluid is drawn from the clavicular air sac of a freshly dead bird. b: This bird had been held at 4o C for 24 h. The fluid is blood tinged and is being aspirated from the axillary diverticulum of the left clavicular air sac. c: This bird had been stored at minus 20o C for two months; the fluid is being drawn from the axillary diverticulum of the right clavicular air sac and is dark red