Animals 4 Article 4 Behavior, Animal 4 Male 4 Spatial Memory animal 4 animal behavior 4 animal experiment 4 brain 4 hippocampus 4 male 4 nonhuman 4 physiology 4 spatial memory 4 Animal model 2 Anxiety 2 Astrocytes 2 Aves 2 Brain 2 Brain Concussion 2 Brood parasitism 2 Cowbirds 2 Discrimination Learning 2 Encephalitis 2 Female 2 Gliosis 2 Hippocampus 2 Maze Learning 2 Memory Disorders 2 Memory, Long-Term 2