Records of multi-story nests in passerines
generally arise from instances where a brood parasite's egg is buried by the host, who builds a second nest layer over the top of the first nest and lays a new clutch in the upper layer.
A key action for improving the quality and availability of food for the falcon will be the planting of fruit trees at identified stopover sites for passerines
thus improving the availability of prey.
This is the first report of seroprevalence of WNV in passerines
in the northern prairies.
Now, calcium deficiency due to acid soil appears to have similar effects on birds, according to a new study of a common European species of passerine
known as the great tit.
Like many other passerines
in south and southeastern Asia, the breeding and basic ecology of this species is poorly described; to date little has been published on the reproductive behavior of the White-rumped Shama (e.
To validate this result, which suggests that migratory passerines
transmit LB spirochetes to ticks with similar efficiency, we compared LB spirochete counts in the larvae from the 2 bird groups.
Further observations will reveal whether such behavior is exhibited by other passerines
when temperature conditions are cold and may lend support to explanations of variability in parental care behavior that are couched in terms of associated risks to offspring (Fontaine and Martin 2006, Fangyuan et al.
This was significantly lower than those reported for this model species in captivity and for most other passerines
in the wild.
THE muffled bugling of whooper swans drifted across the fields as I walkedaround a frosty Mere Sands Wood this week This gem hidden in West Lancs farmland near Rufford was a hive of activity, with many flocks of passerines
drawn to the reserve's feeding stations like a magnet.
Both come in two volumes, one for non-passerines
and one for passerines
were clearly pushing south in numbers, capitalising on the fine weather after a storm front had raced through the night before.
To cope with these harsh environmental conditions, wintering passerines
undergo seasonal acclimatization which helps them maintain thermoregulatory homeostasis.