The lower weight of the pigeons of this study when compared to the Royal Alberta Museum reference data is consistent with the poor condition of the pigeons, and it could also be related to geographical variations in morphological indices for Columba livia [ 29].
We could also move toward "renewable communications technologies" such as carrier pigeons and sneakernets.
The same technologies could also prevent endangered species from going the way of the dodo – or the passenger pigeon.
The pigeons could not reach the seed.
Animal rights advocates said the pigeons could starve.
"I can definitely see why both monkeys and pigeons could profit from this ability," he said.
The alarmism regarding the number of pigeons could therefore be discussed in relation to the latent anxiety and public fear of the undominated presence of pigeons and thus a loss of control over pigeon reproduction and spread.
However, new behavioral particularities observed in urban pigeons could have induced the erosion of their former moral function.
What if pigeons could fly around London with tiny backpacks to measure air pollution during peak hours?
A well-trained pigeon could make the flight in perhaps five hours.
