Columba livia
The Rock Pigeon & Feral Pigeon (page 2)
Various Phenotypes in the "blue" or "wild-type pigment" series.
The feral pigeon shows many different phenotypes. A few of the more common are shown here as well as on page 1.
Grizzle, likely T-pattern check, perhaps, also with undergrizzle and bronze.
Likely Tiger Grizzle (GT), either homozygous or heterozgyous (GTG)
Heterozygous Grizzle (wild-type plus Grizzle). The flights indicate this bird may also carry undergrizzle. Photo used by permission of Greg Gillson, The Bird Guide.
Left to Right: Check, white flight pied, black, check
This is a great shot to see various blue phenotypes, wild-type (bar), check, T-pattern, and to see the iridescence of the neck and head. None of these birds appear to be Spread (black). All the dark ones look to be T-pattern (Not the bar on the tail of the bird immediately behind the blue bar second from left in the front. There are no ash-red phenotypes in this flock but one T-pattern check (left front walking away) shows bronzing in its wing bars. The check on the far left, third bird from the bottom, appears to be a sub-adult. Note that there is little or no iridescence on the neck.
Rock pigeon, juvenile.
Note lack of iridescence on neck; darker beak cere. It's difficult to
see in this shot, but it also appears that the leg/feet are almost black..
If so, then this bird also carries Dirty (V). In adult plumage, the
legs will be the normal pigeon red. This bird appears
to be about 6 weeks old and thus just weaned. This photo was taken in Slottsskogen, Göteborg.
Photo © Mikael Nord and used by permission.
Rock Pigeon - shot shows well the species-specific
purple/green adult iridescence of the neck.
Also note the difference in cere color between this adult and the juvenile
above.
This photo was also taken in Slottsskogen,
Göteborg.
Photo © Mikael Nord and used by permission.
Wild-type (or blue bar) Feral Pigeon
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