Results 51 to 60 of about 1,577 (198)

An overlooked threatened species of eagle: Legge's Hawk Eagle Nisaetus kelaarti (Aves: Accipitriformes)

, 2008
Gjershaug, J. O., Diserud, O. H., Rasmussen, P. C., Warakagoda, D. (2008): An overlooked threatened species of eagle: Legge's Hawk Eagle Nisaetus kelaarti (Aves: Accipitriformes).
Diserud, O. H., Warakagoda, D., Rasmussen, P. C., Gjershaug, J. O.   +3 more
core   +1 more source

Raptor morbidity, mortality, and post-release survival tracking: rehabilitation outcomes from a wildlife rehabilitation centre in Cyprus

Raptor Journal
Raptors as apex predators hold an ecologically important position in biological food webs and historically have faced numerous challenges. Wildlife rehabilitation centres provide an opportunity to understand the regional threats to local raptors.
Fuller Wayne J., Kiral Damla, Türkozan Oğuz, Pelgrims Rianne, Çanakçi Tayfun, Sinkovec Pera, Basat Kemal   +6 more
doaj   +1 more source

Relationship between carina size and sternum morphology in birds reflects physical constraints of body size and flight style

Journal of Anatomy, EarlyView.
Sternum morphology varies among birds and is a function of body mass and order. The area of the sternum is inversely related to the area of the keel suggesting that the increase in bone mass associated with a large keel has been mitigated by a reduction in bone mass of the sternum.
D. C. Deeming
wiley   +1 more source

The pectoralis muscle orientation as an indicator of the modes of wing‐propelled locomotion in birds

Journal of Anatomy, EarlyView.
The pectoralis orientation of birds was consistent with the orientation of the aerodynamic force acting on the wing, varying by wing‐propelled locomotion (WPL) mode. The skeletal morphology unique to each WPL mode, related to the origin/insertion of the pectoralis, may be associated with these functional demands of pectoralis orientation.
Takumi Akeda, Shin‐ichi Fujiwara
wiley   +1 more source

FIGURE 3 in Taxonomy and distribution of the Pygmy Eagle Aquila (Hieraaetus) weiskei (Accipitriformes: Accipitridae)

, 2009
FIGURE 3. Underside pattern of pale morph Aquila pennata (upper), A. morphnoides (middle) and A. weiskei (lower). Drawn from photos and field sketches.Published as part of Gjershaug, Jan O., Lerner, Heather R.L.
Gjershaug, Jan O., Lerner, Heather R.L., Diserud, Ola H.   +2 more
core   +1 more source

"THE PRESENT STATE OF KNOWLEDGE OF THE CENOZOIC BIRDS OF ARGENTINA" BY TONNI 1980: FOUR DECADES AFTER

Publicación Electrónica de la Asociación Paleontológica Argentina, 2023
“The present state of knowledge of the Cenozoic birds of Argentina” published in Contributions in Sciences in 1980, written by the argentine paleontologist Eduardo Pedro Tonni, became a must-read for those interested in the record of fossil birds.
Claudia P. Tambussi, Federico Javier Degrange, Ricardo Santiago de Mendoza   +2 more
doaj   +1 more source

Additional file 1 of Avian haemosporidian parasites of accipitriform raptors

, 2022
Additional file 1: Fig. S1. An intramuscular parasite cyst (arrow) detected in a hematoxylin-eosin stained section of the heart of a western marsh harrier Circus aeruginosus co-infected with Leucocytozoon sp. lCIAE03 and P. circumflexum pTURDUS1. The morphology resembles tissue cysts of parasites belonging to the family Sarcocystidae (Conoidasida ...
Harl, Josef, Himmel, Tanja, Valkiūnas, Gediminas, Ilgūnas, Mikas, Nedorost, Nora, Matt, Julia, Kübber-Heiss, Anna, Alic, Amer, Konicek, Cornelia, Weissenböck, Herbert   +9 more
openaire   +1 more source

Syrinx anatomy and vocalizations in New World vultures (Aves: Cathartidae): Implications for avian vocal evolution

Journal of Anatomy, EarlyView.
New World vultures are the only avian clade proposed to lack a syrinx and have been described as non‐vocal. Using dissection, diceCT, and histology, we demonstrate that cathartid vultures have novel syringeal features that form a syrinx and vocal characterization reveals that they produce more complex vocalizations than previously reported.
Bradley A. Ibarra, Carmen A. Urban, Lucas J. Legendre, Julia A. Clarke   +3 more
wiley   +1 more source

FIGURE 1 in An overlooked threatened species of eagle: Legge's Hawk Eagle Nisaetus kelaarti (Aves: Accipitriformes)

, 2008
FIGURE 1. Results of a Principal Component Analysis (PCA) of biometrics. Empty circles indicate Nisaetus nipalensis males and filled circles N. nipalensis females. Empty triangles indicate N. kelaarti males and filled triangles N.
Diserud, O. H., Warakagoda, D., Rasmussen, P. C., Gjershaug, J. O.   +3 more
core   +1 more source

Rapid responses of marsh birds to large‐scale tidal wetland restoration in California's Sacramento–San Joaquin Delta

Restoration Ecology, EarlyView.
Abstract Introduction Tidal wetland restoration is widely used to recover ecosystem function in modified estuaries, yet uncertainty remains about how quickly wildlife communities respond. Early trajectories are central to evaluating restoration success, guiding adaptive management, and building ecosystem resilience in engineered landscapes. Marsh birds
Jason Riggio, Danielle T. Fradet, Amanda S. Kindel, Michelle Mah, Kristen A. Zumdahl, Molly Ferrell, Andrew Engilis   +6 more
wiley   +1 more source