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2  Hand-Rearing Birds

              Viral, bacterial, fungal, and parasitic diseases are common in wild birds, and may be prob -
            lems in captive collections as well. Caregivers with health concerns should discuss the risks of
            activities involving handling of chicks with their physician. Good hygienic practices are always
            warranted when handling animals of any kind, especially wild animals. Personal protective
            equipment such as a face mask, gloves, dedicated clothing, and foot baths may be useful to
            both reduce caregiver exposure to zoonotic diseases and to reduce exposure of chicks to human
            flora  and  pathogens.  Although  many  parasitic  diseases  of  wild  birds  require  intermediate
            hosts and as such are not commonly transmitted within care centers (e.g. helminths), some
            are  zoonotic  (e.g.  Giardia  lambla)  or  transmissible  between  birds  (e.g.  Trichomonas  spp.).
            Bacterial pathogens may become problematic in kitchen or other areas (e.g.  Salmonella spp.).
            Viral diseases are of particularly high concern when raising poultry (see Chapter 7), and fun-
            gal organisms may become a risk in some environments or when feces is allowed to accumu-
            late in housing.
              Disposable gloves are useful, and frequent handwashing is imperative. Routine cleaning and
            disinfection  of  caging,  food  dishes,  and  feeding  implements  helps  control  risks  to  everyone
            involved, both birds and their caregivers. Nursery protocols should be thoughtfully planned to
            avoid pathogen transmission between groups of chicks, while also allowing for appropriate sociali-
            zation as dictated by each chick’s intended adult lifestyle. An avian veterinarian can be extremely
            helpful in planning nursery protocols that protect both human and animal health.


            ­ Criteria­for Intervention


            Chicks found in the mouth of a dog or cat, alone in an inappropriate location such as the middle
            of a parking lot or prone on a baking hot sidewalk, or that are cold, injured, covered with parasites
            or ants, entangled in a foreign material, or otherwise in obvious trouble, are indeed in need of
            rescue. Alert, active, fully‐feathered, mobile chicks that are found without evidence of trauma or
            distress in the environment in which their parents nested, whether that is a backyard or natural
            area, should be left alone. If the parents are providing care and the chick is uninjured, the risk of
            “cats in the neighborhood” is not sufficient reason to bring a found chick into captivity. This risk is
            faced by most wild birds in the world, and it is always preferable for a wild animal of any species to
            be raised by its parents. This enables the youngster to best learn the finer details of species‐specific
            social and survival skills it will need to navigate its wild environment.


            Precocial­vs­Altricial
            There are two principle types of chick development, although this is an oversimplification of the
            diverse strategies birds have evolved for raising their young. Precocial chicks are those that hatch
            with their eyes open and are mobile and able to leave the nest shortly after hatching, following
            after the parent  who provides  protection, warmth,  and  guidance  regarding  what  to  eat. These
            chicks are sometimes found alone, apparently parentless. Once precocial chicks hatch, the family
            group usually  leaves the  nest area. Consequently, it  may be  very  difficult to reunite  separated
            chicks with their parents, although some species will foster extra chicks if an appropriate family
            group with chicks the same age can be located. Precocial chicks in obviously bad locations, such as
            running in the street, should be immediately rescued or shepherded out of traffic to rejoin their
            family. Mallards will sometimes nest in urban fountain planters or near swimming pools, and
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