Jackson Hole, WY

Leaves, flower, and fruit diagram

Leaves, flower, and fruit diagram

Graves Pg.111

Graves Pg.111

Graves Pg.113

Graves Pg.113

Emory Oak, Chirochua National Park, AZ

Old Field Succession, MCNP. KY

Overwintering birds are frequently exposed to thermal challenges that can quickly decrease energy reserves, thus leading to an increase in the risk of starvation. During these periods of energetic hardship, many avian ...