Correction of a Hyperflexed Hallux in a Saker Falcon () by Hemisectioning the Deep Digital Flexor Tendon.

A 3-year-old male saker falcon () was presented with a history of hyperflexion of the first digit of the left pelvic limb with what appeared to be a hypercontracted distal end of the deep digital flexor tendon (). Conservative treatment, bandaging, and splinting techniques failed to resolve the hypercontraction of the deep digital flexor tendon and improve digit function. Intraoperatively, the deep digital flexor tendon was found to have formed adhesions with the tendon sheath as well as the bone and soft tissue structures underneath it, impeding its ability to move freely within the tendon sheath.

Linked-Read Sequencing of Eight Falcons Reveals a Unique Genomic Architecture in Flux.

Falcons are diverse birds of cultural and economic importance. They have undergone major lineage-specific chromosomal rearrangements, resulting in greatly-reduced chromosome counts relative to other birds. Here, we use 10X Genomics linked reads to provide new high-contiguity genomes for two gyrfalcons, a saker falcon, a lanner falcon, three subspecies of peregrine falcons, and the common kestrel.

Laterality preferences at rest and predatory behaviour of the Gyrfalcon (): An alpha predator of the sky.

Brain lateralization is generally considered adaptive for an individual and it can be ascertained, for example, by measuring the preferential use of limbs. Avian models have been extensively used to investigate the evolution and the advantages of brain lateralization. Birds of prey are a good model to study motor laterality, however to date they have been studied almost exclusively in the context of predatory behaviour.

Management of Knuckling in an Ostrich () Using a Custom-Made Orthotic Shoe.

A 4-year-old female ostrich () developed knuckling on its left foot after a traumatic event. Conservative treatment, rest, and traditional splinting methods failed to resolve the gait abnormality or improve mobility. A dynamic multicomponent orthotic shoe was then custom designed and fabricated with an ultra-high-molecular weight, low-pressure polyethylene polymer (St 1000 DIN16972 TG2) to correct the foot malposition.

Prevalence of (Apicomplexa: Eimeriidae) Oocysts in the Environment of a Gyrfalcon () Breeding Center in the United Arab Emirates.

A total of 356 gyrfalcon () fecal, fomite, and environmental samples were collected from a breeding center located in the United Arab Emirates to assess the prevalence of species oocysts in the environment. These included 136 samples (38%) from fomites and fecal samples from chicks at 0 to 10 days old, 29 samples (8%) at 15 days old, 23 samples (6%) at 60 days old, 7 samples (2%) at 67 days old, and 24 samples (7%) at 70 days old. In addition, 105 samples (29%) were collected from the environment of 13 breeding chambers, and 32 samples (9%) from the environment of 17 juvenile falcons.