Published in Raptor Research, in 1986, in volume 20, issue 1, pages 1-15

Published in Raptor Research, in 1986, in volume 20, issue 1, pages 16-20

Published in Raptor Research, in 1986, in volume 20, issue 1, pages 21-28

Published in Raptor Research, in 1986, in volume 20, issue 1, pages 29-34

Published in Raptor Research, in 1986, in volume 20, issue 1, pages 35-38

Published in Raptor Research, in 1986, in volume 20, issue 1, pages 39-41

Published in Raptor Research, in 1986, in volume 20, issue 1, pages 41

Published in Raptor Research, in 1986, in volume 20, issue 1, pages 42-43

Published in Raptor Research, in 1986, in volume 20, issue 1, pages 43-45

Published in Raptor Research, in 1986, in volume 20, issue 2, pages 51-60

Published in Raptor Research, in 1986, in volume 20, issue 2, pages 61-64

Published in Raptor Research, in 1986, in volume 20, issue 2, pages 65-68

Published in Raptor Research, in 1986, in volume 20, issue 2, pages 69-71

Published in Raptor Research, in 1986, in volume 20, issue 2, pages 71-74

Published in Raptor Research, in 1986, in volume 20, issue 2, pages 75-76

Published in Raptor Research, in 1986, in volume 20, issue 2, pages 76

Published in Raptor Research, in 1986, in volume 20, issue 2, pages 77-78

Published in Raptor Research, in 1986, in volume 20, issue 2, pages 78-79

Published in Raptor Research, in 1986, in volume 20, issue 3-4, pages 91-101

Published in Raptor Research, in 1986, in volume 20, issue 3-4, pages 102-107

Published in Raptor Research, in 1986, in volume 20, issue 3-4, pages 108-112

Published in Raptor Research, in 1986, in volume 20, issue 3-4, pages 113-116

Published in Raptor Research, in 1986, in volume 20, issue 3-4, pages 117-119

Published in Raptor Research, in 1986, in volume 20, issue 3-4, pages 120-123

Published in Raptor Research, in 1986, in volume 20, issue 3-4, pages 124-127

Published in Raptor Research, in 1986, in volume 20, issue 3-4, pages 128-129

Published in Raptor Research, in 1986, in volume 20, issue 3-4, pages 130-131

Published in Raptor Research, in 1986, in volume 20, issue 3-4, pages 131-132

Published in Raptor Research, in 1986, in volume 20, issue 3-4, pages 132-133