License: This is an open access protocol distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited
It is vital to bear in mind that more birds will be saved by appropriate fluid and nutritional support than any single medical or surgical therapy.
Patients should at least be maintaining weight, if not gaining weight. Feeding regimes must be adjusted to account for any shortfalls. This may warrant increasing the frequency or volume of supplementary feeding. Further weight loss, despite efforts, suggests compromised health.
Infection control and biosecurity
A sick vulture can be carrying and excreting a range of infectious pathogens. A sick bird can be a reservoir for a variety of infections and could be a risk to young, old and immune-compromised vultures. Contamination of rehabilitation facilities can result in infection of other patients and staff working in the facility. It is worth noting that if a bird is shedding very high levels of a pathogen, the risk of bacterial, viral, fungal and parasitic infections need to be considered.
Veterinary input will be required in order to consider if a bird is suffering from a systemic (i.e. blood born within the body systems) infection. Verification is generally achieved by testing a blood sample. Published normal ranges for white blood cell (WBC) counts for a variety of African vulture species are given in the table below. White cell counts below the lower limit of the normal range tend to indicate a viral infection, whilst WBC counts above the upper limit of the normal range tend to indicate a fungal or bacterial infection (although lead poisoning will also cause an elevated level). Gut infections that do not pass into the body tend not to cause elevations of white blood cell levels.
No vulture that is considered to be suffering from an infection at admission should be released until one can be reasonably certain that the infection is fully controlled.
Record keeping
All birds admitted must be identifiable and good records maintained. Records should detail:
reason for admission/cause of injury
origin of where the bird came from
clinical presentation and demeanour
weight and body condition on admission and at subsequent checks
all medications administered, tests conducted, food and fluid administered
response to therapy
Accommodation
The following pre-requisites are essential:
Easy to clean and disinfect
Quiet, dimly lit (when required), in a stress-free environment
Easy access for observation, either direct or by CCTV
Must be easy to restrain and remove the patient from the box and replace it, with minimal risk of injury and minimal stress to patient and staff
Isolation facilities for accommodating potentially infectious patients is important
Weighing scales are essential
If birds are in sternal recumbency, but still able to keep their head elevated, then pressure sores on legs and keel are prevented by creating a towel donut. In birds with paralysed legs, facilities to sling the bird is essential. If the bird is in sternal recumbency and is unable to hold its head up, then a cushion or foam block must be placed in front of the bird’s neck, with the head maintained on this raised surface. In this way the head is always kept above the level of the crop, so there is no risk of crop fluid reflux to the mouth and entrance into the wind pipe, which would result in aspiration and fatal pneumonia.
Once no longer in a critical condition, it is beneficial to house birds where they have access to sunshine, grass and other vultures.
ZIMS Expected Test Results for Gyps genus, Aegypius monachus, Necrosyrtes monachus, and Torgos tracheliotos.