The Red Crossbill

Ginger Andrews • February 7, 2023

By: Ginger Andrews, MMA Field Ornithologist


This chubby irruptive winter finch doesn’t show up every year. They leave the boreal forest when their food—seeds of coniferous trees— fails in the north. So far this has been a great year to find them on Nantucket, with 127 tallied on the Christmas Bird Count. 


The first Red Crossbills seen on Nantucket, three in number, were noted on December 30, 1945. After a large irruption, they may stay to nest where food is abundant. If there is enough, they can breed in that spot year-round. According to the first Massachusetts Breeding Bird Atlas, it is possible that Red Crossbills nested in Madaket at least once between 1975-1980. But no locations, state-wide, were the same during 2007-2011 according to the Breeding Bird Atlas.


Females are greenish yellow; males a dull red. Their naturally twisted beaks are a perfect “cone-opener” allowing them to squeeze open pine or other cones for the delicious seeds within. They also eat spruce, hemlock and fir sees. But on Nantucket, this year, they seem to prefer the cones of the scrubby Japanese Black Pines found near Low Beach. 


They form loose flocks, moving quickly from place to place, as cones begin to open, chattering as they go. They may be discussing where the best eats are! But, there is even more to it than that; their preferences and vocalizations may be giving us new clues.


Red Crossbills are challenging ornithologists’ understanding of how and what separates one species or subspecies from another. They are still undergoing taxonomic revision, with as many as ten separate types—or species—possible. Birds in different flocks, with different, genetics, morphology, and ecological preferences use different calls and specialize in different foods. So, researchers and amateur birders are recording their calls to try and understand these nomadic wanderers. Stay tuned.



Photo by Trish Pastuszak

Recent Posts

By Jascin N. Leonardo Finger November 10, 2025
A re-blog from years past. The item you see here is a small piece of what once was. Upon her visit to Europe as a young woman’s chaperone in 1857 –1858, Maria Mitchell visited many of the major observatories of Europe and met many of the movers and shakers in the scientific, art, and literary worlds of the continent. While Caroline Herschel (1750 – 1848) and her brother, Sir William (1738 – 1822), were long dead, Maria was able to meet Caroline’s nephew (William’s son), Sir John Herschel (1792 – 1871). All three were astronomers, though Caroline found herself having to give credit – or have her brother accept credit – for much of her work because she was a woman. She has often been credited with the being the first woman to discover a comet. She was likely not – and the other woman who was the first lost credit through history as she had to “give” her comet discovery to her husband. See a pattern? Caroline was just one of many women in a long line of, “She couldn’t possibly do that – she is a woman!” As Maria once said, “But a woman, what more could you ask to be?” But back to this small item. It was a page from one of Caroline Herschel’s notebook’s, torn from its home by John Herschel to serve a s a memento for Maria of her visit to the family’s home. Maria was a bit shocked but . . . she took it! Over the years, the paper tore and ripped and just crumbled away until Maria finally decided that to save it, she needed to past it into one of her own journals. And thus, we have what we have. I assume Caroline’s notations refer to her brother William – “Wol” and Woll.” It could be an “I” but it really looks like an “O.” She is considered the world’s first professional woman astronomer – she would be compensated for her work after some time – and she warrants a greater look at – too much for a blog. So I encourage you to go take a look at her. Maria would want you to! JNLF
By Jascin N. Leonardo Finger November 3, 2025
I am not so sure our founders would love that title but the image is of the Maria Mitchell Vestal Street Observatory (MMO) “from the rear.” I love this image as it is really the only one we have – unless you count the one that is taken from farther away and from further into the backyard of the Mitchell House. That one allows you to see the natural slope of the Mitchell House back lawn which would be altered when they added the Curator’s Cottage. Both of the images were taken before the Curator’s Cottage was added at the back of the Mitchell House in the early 1930s – and this one you see here was taken before 1922 when they added the Astronomical Study onto the MMO. It also shows the original dome – which was copper – before it was replaced in 1951 – which is the current dome. The copper did not hold up to our climate here – salt spray, damp, fog. But the new one, shipped over from England, has held up well. The current dome was donated by Margaret Underwood Davis (MMA board president at the time), in memory of her son, Cushing Davis who was an amateur astronomer. Margaret Davis served as president from 1930-1946 and again from 1949-1953. The image tells you some other things too. For instance, the grape arbor behind the Mitchell House is supposed to be Peleg Mitchell’s (Maria’s uncle) grape vine – I have blogged about it several times before – and you can see it in this image. You can also see how the Milk Room connects to the 1850s kitchen. The 1850s kitchen was added by Peleg Mitchell Jr and it’s the first little wart you see with the white pipe attached. The next wart is the Milk Room – also added by Peleg – it’s the one with the shutters on the window. Both still exist it’s just the Curator’s Cottage was attached in the 1930s. You will see another chimney too. It appears alongside the white pipe. That is likely the original chimney to what is now the Astronomer’s Cottage at the MMA. We acquired the Cottage in the 1920s but I believe all of the additions, and the removal of the chimney, were done before we were given it.  Fun! JNLF
November 1, 2025
“If you don’t look, you don’t see. You have to go and look.” -Edith Andrews
Show More