There has been a revision of the threatened and endangered species list for the state of Michigan. Many of the changes in the lists below ...

  Craves, J.A., and N.M. Anich. 2023. ­­­Status and distribution of an introduced population of European Goldfinches ( Carduelis carduelis ...

European Goldfinches in Kenosha, WI, April 2016 Photo by Darrin O'Brien     I have posted an updated page on European Goldfinches an...

The paper Native birds exploit leaf-mining moth larvae using a new North American host, non-native Lonicera maackii was recently publishe...

Time for an update on the seed and diet study -- one in which may explain why blog posts have been so infrequent over the past year. Recap...

I mentioned in a previous post that our analyses of seeds found in the fecal samples of birds requires context: some sort of compilation a...

Detroit Public Television and The Nature Conservancy have partnered to produce a series of programs on topics of regional environmental impo...

We are a little more than halfway through our modified fall banding. This year, we are concentrating on obtaining as much data as possible o...

RRBO has done very little summer banding over the years, as we have not had any research projects that require banding during the breeding s...

In 2011, RRBO embarked on a collaborative research project with Dr. Melissa Bowlin, a member of the UM-Dearborn Natural Sciences faculty. Dr...

As regular followers know, RRBO's primary research focus is the ecology of fall migrant birds in urban areas, and one of our main projec...

One of our research projects at RRBO is a joint project with Dr. Melissa Bowlin, a faculty member here at UM-Dearborn. Last fall, we placed ...

The North American Migration Count takes place the second Saturday each May. It aims to take a "snapshot" of migration, and is ...

Update: This paper has been published! It's open access so you can read online or download the PDF; click on title below - Craves, J.A.,...

Last fall, I described the focus of my research : the autumn stopover ecology of migrant thrushes. My paper summarizing weight and fat chan...

My paper on the fall stopover ecology of thrushes has finally been published. In addition to all the time it takes to collect data, analyze ...

Update: This paper has been published! It's open access so you can read online or download the PDF; click on title below - Craves, J.A.,...

Since not very many banded birds are re-found away from the place they are banded, the majority of what we learn from banding birds comes fr...

The other day I banded this HY (hatching-year) cardinal with a bill tumor. It looks sort of like a scab or blob of gunk stuck on the bill, b...