Bird Conflict – Common Cuckoo vs. Sedge Warbler ...

Because the innermost layer of cuckoo eggshells is stronger than that of warbler eggshells, it is still possible that common cuckoo eggshells experience a greater reduction in overall breaking ...

They compared the thicknesses of unincubated and hatched cuckoo and warbler eggshells using scanning electron microscopy, and found that cuckoo and warbler eggshells experience similar amounts of ...

Neighborhood watch and more: How reed warblers watch out when there's a cuckoo about Date: January 22, 2016 Source: University of Cambridge Summary: A study of reed warbler behavior reveals for ...

When the cuckoo chick hatches, it pushes the reed warbler eggs and young out of the nest. As sole occupant, it tricks its warbler 'parents' into supplying its voracious appetite until it fledges.

When reed warblers spot a cuckoo, they may mob it and emit alarm calls that carry up to 40 metres. These alarm calls attract neighbours, who come to investigate the cause of the commotion.

The trickery of the baby cuckoo exposed by experiments with loudspeakers and blackbirds.

The cuckoo is a bird whose behaviour is so horrendous — when judged by human standards, at any rate — that it wasn't until the advent of wildlife film that ornithologists finally acknowledged and ...

The warblers found it straight away and again began to deliver more food. Then the cuckoo chick made its way onto a broken-off stump and here the warblers had nothing to perch on to feed it.

A tardy-migrating broad-winged hawk in Sheffield, and at the Jug End Reservation in Mount Washington, a Philadelphia vireo, a Tennessee warbler, and a Swainson’s thrush.

Common cuckoo, warbler eggshells undergo similar levels of eggshell thinning Date: October 27, 2016 Source: The City University of New York Summary: As avian embryos develop, they draw needed ...

Notable species were highlighted last week by a Virginia’s warbler that spent several days at the Putnam Farm Conservation Area in Orleans for a first Massachusetts record.