Long-term studies have been crucial to the advancement of population biology, especially
our understanding of population dynamics. We argue that this progress arises from three key …

The first comprehensive review of all aspects of the biology of moult, drawing information
from across the literature and in all birds, from penguins to passerines. Feathers are …

The kampong chicken farming industry has excellent potential to develop in Indonesia.
Therefore, it is necessary to understand the growth of kampong chickens in order to obtain …

The flapping wing is one of the most widespread propulsion methods found in nature. The
current study focuses on the estimation of unsteady aerodynamic forces on freely flying birds …

The lumbosacral‐canal system in birds most likely operates as a sense organ involved in
the control of balanced walking and perching, but our knowledge of it is superficial …

Grasping behavior and manipulation using the hand and/or foot is widespread among
tetrapods and can be used in various contexts in the daily life of many species. Activities …

Melanin pigments are central to colors and patterns in modern vertebrate integuments,
which inform upon ecological and behavioral strategies like crypsis, aposematism, and …

Female eastern tiger swallowtails (Papilio glaucus) are well-known wing coloration mimics
of the toxic pipevine swallowtail (Battus philenor). Given that forewing shape is an important …

In most birds, red feather color is linked to diet and attributed to carotenoids contained in
plants and fruits. In the red crown feathers of the Ruby‐crowned Kinglet (Regulus …

Burrowing habits or complex environments have generally been considered as potential
drivers acting on reduction and loss of the appendicular skeleton among vertebrates …