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Message
re: The Way of the Cuckoo: How Brood Parasites are so successful: prejudice in nature
Posted on 1/19/22 at 3:35 pm to fr33manator
Posted on 1/19/22 at 3:35 pm to fr33manator
quote:
How do they do the traps?
The state of Texas kindly has provided plans on how to build and use a Cowbird trap:
LINK
On the cover of the guide are Golden-cheeked Warbler (Endangered Texas breeding species), and Black-capped Vireo (Near Threatened, mostly found in Texas). I made a stop in the Hill Country to find them both.
2
Posted on 1/19/22 at 3:57 pm to fr33manator
quote:
See how they Mimic the host egg patterns?
By demanding so many resources, it starves and limits the host birds’ true offspring.
Fascinating stuff. They are one of the most successful birds, all on the backs of others. The ways they have adapted are devilishly cunning and cruel.
Oy vey!
This post was edited on 1/19/22 at 3:59 pm
Posted on 1/19/22 at 4:21 pm to fr33manator
I know a few people who could be described as “brood parasites.”
This post was edited on 1/19/22 at 4:27 pm
Posted on 1/19/22 at 4:38 pm to Rick9Plus
You mean, “breeding parasites”?
Posted on 1/19/22 at 5:43 pm to Tigris
Linkee no workee
Posted on 1/20/22 at 7:49 am to Tigris
Do you have another link to the cowbird trap? I’m intrigued.
Posted on 1/20/22 at 8:43 pm to blackinthesaddle
The Hen is bred for dinner,
The Turkey bred for bread,
And to sit upon the table,
When there’s many to be fed,
And tasty is the goose, forsooth,
When it’s fit to be plucked,
And some like best, the tasty breast,
That comes from hunted duck,
Fois Gras is for the rich man,
And pigeon for the peasant,
And many a lord, when e’er their bored,
Has caught a brace of pheasant,
Large omelettes lays the ostrich,
And ask any Aussie crew,
‘Bout how their fight, went far from right,
When they battled the Emu,
Though some may hunt the Mockingbird,
Far fewer slay the Swan,
They prove their worth, or there’s a dearth,
The way the Dodo’s gone,
The dead are food for vultures,
The living food for hawks,
They chirp and cheep, they honk and peep,
They quack and crow and squawk,
At building nests, they’re masters,
And from them we’ve learned flight,
Their song has helped a soul hang on,
Through darkest, blackest night,
They bring both peace and war forth,
It’s really quite absurd,
So raise your glass, and whet your beak,
For this one’s for the birds.
The Turkey bred for bread,
And to sit upon the table,
When there’s many to be fed,
And tasty is the goose, forsooth,
When it’s fit to be plucked,
And some like best, the tasty breast,
That comes from hunted duck,
Fois Gras is for the rich man,
And pigeon for the peasant,
And many a lord, when e’er their bored,
Has caught a brace of pheasant,
Large omelettes lays the ostrich,
And ask any Aussie crew,
‘Bout how their fight, went far from right,
When they battled the Emu,
Though some may hunt the Mockingbird,
Far fewer slay the Swan,
They prove their worth, or there’s a dearth,
The way the Dodo’s gone,
The dead are food for vultures,
The living food for hawks,
They chirp and cheep, they honk and peep,
They quack and crow and squawk,
At building nests, they’re masters,
And from them we’ve learned flight,
Their song has helped a soul hang on,
Through darkest, blackest night,
They bring both peace and war forth,
It’s really quite absurd,
So raise your glass, and whet your beak,
For this one’s for the birds.
Posted on 1/24/22 at 9:10 pm to Funky Tide 8
quote:
Funky Tide 8
Now I get the reference. Gonna watch this movie
Posted on 1/24/22 at 9:51 pm to fr33manator
quote:
Yes, limiting the offspring of the more self sufficient species by robbing them of resources and attacking their young may seem like a boon for the cuckoo, but what’s going to happen when the other birds don’t have enough resources and migrate to another area?
Unfortunately for the natives, the cuckoo in their devious evolution, has learned to stake out an area where the native population is engrossed with the local grub and songbird population. So much so that they will be reluctant to migrate despite the dwindling resources and violent attacks on their offspring.
Posted on 1/25/22 at 2:52 am to letsgeauxbrandon
Yes, but some species are developing defenses against them.
LINK
LINK
quote:
As avian brood parasitism usually reduces hosts' reproductive success, hosts often exhibit strong defence mechanisms. While such host defences at the egg stage (especially egg rejection) have been extensively studied, defence mechanisms at the nestling stage have been reported only recently. We found a previously unknown anti-parasitism behaviour in the large-billed Gerygone, which is a host species of the little bronze-cuckoo, a host-evicting brood parasite. The hosts forcibly pulled resisting nestlings out of their nests and dumped them. Although it has been suggested that defence mechanisms at the nestling stage may evolve when host defence at the egg stage is evaded by the parasite, the studied host seems to lack an anti-parasitism strategy at the egg stage. This suggests that the evolutionary pathway may be quite different from those of previously studied cuckoo-host systems. Future research on this unique system may give us new insights into the evolution of avian brood parasitism.
Posted on 1/25/22 at 6:11 am to Stealth Matrix
i understood that reference
Posted on 1/25/22 at 6:13 am to Penrod
quote:
Now show taxpayers host) and government workers (parasite).
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