White "
leucistic" alligators are very rare due to its lack of pigment leaving them vulnerable in the wild.
He sent me a photo and the bird appears to be
leucistic, which is a condition caused by a lack of melanin pigmentation.
At 1055 h on 21 September 2015, a
leucistic male of Tropidurus hispidus was photographed on a rocky surface and leaf litter around the Fortaleza de Sao Jose de Macapa (0.031058[degrees]N, 51.049133[degrees]W, datum WGS84), municipality of Macapa, Amapa state, Brazil.
Despite these disadvantages, reports of
leucistic animals at mature life stages still occur (Fertl and Rosel, 2009).
We have counted a grand total of eight of these iconic white,
leucistic birds amongst the thousands wintering on the Solway.
The missing creature is a
leucistic alligator, one of only 10 in the world, Robbie Keszey said in a phone interview Tuesday.
Wild albino and
leucistic animals are usually rare, partially due to to their low survival rates, considering that specimens within these conditions may hatch stillborn, with malformations, and are easier to be detected by prey and predators than their normally colored counterparts, with negative impacts on their feeding and reproductive capabilities (Walter, 1938; Oliveira, 2009; Krecsak, 2008; Noronha et al., 2013)
The pathologic and molecular findings associated with Histomonas meleagridis are described in a
leucistic Indian peafowl (Pavo cristatus) from Southern Brazil.
11, 1983, I had never even heard of a
leucistic bird.
The fox squirrel was
leucistic, which may be even rarer than albino or blond.