Tumbling" of Brant"
“Tumbling” of Brant.-From 1892 until about 1900, I was a frequent visitor to the Coronado Strand at San Diego. At that time it was a common sight to see strings of Brant flying north and rising at a very slight angle. Suddenly the leader would tumble vertically about 20 to 30 feet, followed at the same spot individually by each succeeding member of the string which would then again begin the almost imperceptable climb for another tumble. The tumbles were made at intervals of about a mile. In those days there were many strings visible at the same time. There were no V-shaped flock formations. Was this a “game,” courting, or a regular migrational phenomenon?-CHAPMAN GRANT, San Diego, California, March 11, 1946