Davis, Marcia,
Migration Marathons Huge Challenge for Birds. Marcia Davis. - Knoxville News-Sentinel, 2004. - SIRS Enduring Issues 2005. Article 24, Science, 1522-3264; .
Articles Contained in SIRS Enduring Issues 2005. Originally Published: Migration Marathons Huge Challenge for Birds, Oct. 1, 2004; pp. E2.
"An estimated 5 billion North American birds migrate south each fall. The perils of long migration flights to wintering grounds and back are so great that only about half of the North American birds migrating to Mexico, the Caribbean, and Central and South America will make it back next spring to nest." (KNOXVILLE NEWS-SENTINEL) This article examines the problems faced by birds during migration.
1522-3264;
Birds--Migration
Hummingbirds
Hurricanes
AC1.S5
050
Migration Marathons Huge Challenge for Birds. Marcia Davis. - Knoxville News-Sentinel, 2004. - SIRS Enduring Issues 2005. Article 24, Science, 1522-3264; .
Articles Contained in SIRS Enduring Issues 2005. Originally Published: Migration Marathons Huge Challenge for Birds, Oct. 1, 2004; pp. E2.
"An estimated 5 billion North American birds migrate south each fall. The perils of long migration flights to wintering grounds and back are so great that only about half of the North American birds migrating to Mexico, the Caribbean, and Central and South America will make it back next spring to nest." (KNOXVILLE NEWS-SENTINEL) This article examines the problems faced by birds during migration.
1522-3264;
Birds--Migration
Hummingbirds
Hurricanes
AC1.S5
050