10,000 Birds

FEBRUARY 29, 2012

Most Acorn Woodpeckers are cooperative breeders and live in family groups of up to a dozen or more individuals. Within a group, 1–7 male co-breeders compete for matings with 1–3 joint-nesting females who lay their eggs in the same nest cavity. This is a photo of a juvenile at my water feature.

Woodpeckers 186

Woodpeckers Breeders Groups North America 186

Critter News

MARCH 13, 2009

Many groups and individuals are working very hard on this by trying to decrease the supply. A second strategy is limiting the number of breeders out there who simply keep adding to the supply for their own personal profit. What we need to do is reach an equilibrium where the supply for pets equals the demand.

Pets 100

Pets Spay Spaying Neutering 100

10,000 Birds

MARCH 14, 2022

So, I anxiously followed the “Flock to Marion 2022” Facebook group in anticipation for open cabins to come up for sale. Well, cats are just as successful breeders as mice and soon there were thousands of cats that sought out prey bigger than mice and began to wipe out the native seabird population. I waited…and waited…and waited.

South Africa 264

South Africa Mice Albatross Africa 264

10,000 Birds

FEBRUARY 18, 2014

There are two patterns that are fairly extreme that fall into this category: brood parasitism and helper-at-the-nest strategy. In the case of brood parasitism, made famous by the many species of Cuckoo as well as cow birds and some fiches, among others, one might expect the host birds to evolve anti-parasitism strategies.

Breeders 210

Breeders Breeding Birds Groups 210

10,000 Birds

MARCH 15, 2011

Swarovski ATM scope & Canon A590 Now Alpine Accentors have a much more interesting strategy: 3-5 males defend a single breeding territory, containing 2-3 spatially separated female Accentors. Dale Forbes Mar 16th, 2011 at 7:48 am @Corey, Is there also a Daisy involved in this Group Marriage? Any reason?

2011 221

2011 Breeders Breeding Deer 221